Glossary Flashcards
(234 cards)
0
Q
Absorption
A
The transport of fully digested food into the circulatory system to feed the tissues and cells
1
Q
Abductors
A
Muscles that draw a body part, such as a finger, arm, or toe, away from the midline of the body or of an extremity. In the hand, abductors separate the fingers.
2
Q
Adductors
A
Muscles that draw a body part such as a finger, arm, toe, inward toward the median axis of the body or of an extremity. In the hand, adductors draw the fingers together
3
Q
Adipose tissue
A
A specialized connective tissue considered fat, which gives smoothness and contour to the body and cushions and insulates the body.
4
Q
Adrenal gland
A
Glands that secrete about 30 steroid hormones and control metabolic processes of the body, including the fight-or-flight response
5
Q
Anabolism
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Constructive metabolism; the process of building up larger molecules from smaller ones
6
Q
Anatomy
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The study of human body structure that can be seen with the naked eye and how the body parts are organized and the science of the structure of organisms or of their parts
7
Q
Angular artery
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Artery that supplies blood to the side of the nose
8
Q
Anterior auricular artery
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Artery that supplies blood to the front part of the ear
9
Q
Aorta
A
The body’s largest artery. The arterial trunk that carried blood from the heart to be distributed by branch arteries through the body
10
Q
Arteries
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Thick-walled muscular and flexible tubes that carry oxygenated blood from the heart to the capillaries throughout the body
11
Q
Arterioles
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Small arteries that deliver blood to capillaries
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Q
Atrioventricular valves
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Abbr ATV; valves which are designed to prevent the blood from flowing back into the pumping chamber
13
Q
Atrium
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Thin-walled, upper chamber of the heart through which blood is pumped to the ventricles. There is a right atrium and a left atrium
14
Q
Auricularis anterior
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Muscle in front of the ear that draws the ear forward
15
Q
Auricularis posterior
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Muscle behind ear that draws the ear backward
16
Q
Auricularis superior
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Muscle above the ear that draws the ear upward
17
Q
Auriculotemporal nerve
A
Nerve that affects the external ear and skin above the temple, up to the top of the skull
18
Q
Autonomic nervous system
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Abbr ANS; the part of the nervous system that controls the involuntary muscles; regulates the action of the smooth muscles, glands, blood vessels, and heart
19
Q
Axon
A
The extension if a neuron through which impulses are sent away from the cell body to other neurons, glands, or muscles
20
Q
Belly
A
Middle part of a muscle
21
Q
Biceps
A
Muscle producing the contour if the front and inner side of the upper arm
22
Q
Blood
A
Nutritive fluid circulating through the circulatory system (heart, veins, arteries, and capillaries) to supply oxygen and nutrients to cells and tissues and to remove carbon dioxide and waste from them.
23
Q
Blood vessels
A
Tube like structures that transport blood to and from the heart, and to various tissues if the body; include arteries, arterioles, capillaries, venues, and veins
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Body systems
Also know as systems; groups of bodily organs acting together to perform one or more functions. The human body is composed of 11 major systems
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Brachial artery
Located in the upper arm, the brachial artery is a major blood vessel which runs down the arm and ends by dividing inti the radial and ulnar arteries, which run down through the forearm
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Brain
Part of the central nervous system contained in the cranium; largest and most complex nerve tissue; controls sensation, muscles, glandular activity, and the power to think and feel
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Brain stem
Structure that connects the spinal cord to the brain
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Buccal nerve
Nerve that affects the muscles of the mouth
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Buccinator
Thin, flat muscle of the cheek between the upper and lower jaw that compresses the cheeks and expels air between the lips
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Capillaries
Tiny, thin-walled blood vessels that connects the smaller arteries to the veins. Capillaries bring nutrients to the cells and carry away waste materials
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Cardiac muscle
The involuntary muscle that is the heart. This type of muscle is not found in any other part of the body
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Carpus
Also known as rest; a flexible joint composed of eight small, irregular bones (carpals) held together by ligaments
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Catabolism
The phase of metabolism that involves the breakdown of complex compounds within the cells into smaller ones, often resulting in the release of energy to perform functions such as muscular efforts, secretions, or digestion
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Cell membrane
Part of the cell that encloses the protoplasm and permits soluble substances to enter and leave the cell
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Cells
Basic unit of all living things; minute mass of protoplasm capable of performing all the fundamental functions of life
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Central nervous system
Abbreviated CNS; cerebrospinal nervous system; consists of the brain, spinal cord, spinal nerves, and cranial nerves
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Cerebellum
Lies at the base of the cerebrum and is attached to the brain stem; this term is Latin for "little brain"
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Cerebrum
Makes up the bulk of the brain and is located in the front, upper part of the cranium
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Cervical cutaneous nerve
Nerve located at the side of the neck that affects the front and sides of the neck as far down as the breastbone
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Cervical nerves
Nerves that originate at the spinal cord, whose branches supply the muscles and scalp at the back of the head and neck; affect the side of the neck and the platysma muscle
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Cervical vertebrae
The seven bones of the top part of the vertebral column, located in the neck region
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Circulatory system
Also known as cardiovascular system or vascular system; system that controls the steady circulation of the blood through the body by means of the heart and blood vessels
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Clavicle
Also known as collarbone; bone joining the sternum and scapula
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Common Carotid arteries
Arteries that supply blood to the face, head, and neck
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Connective tissue
Fibrous tissue that binds together, protects, and supports the various parts of the body such as bone, cartilage, and tendons. Examples of connective tissue are bone, cartilage, ligaments, tendons, blood, lymph, and fat
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Corrugator muscle
Facial muscle that draws eyebrows down and wrinkles the forehead vertically
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Cranium
Oval, bony case that protects the brain
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Cytoplasm
All the protoplasm of the cell except that which is in the nucleus; the watery fluid containing food material necessary for cell growth, reproduction, and self repair
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Defecation
Elimination of feces from the body
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Deltoid
Large, triangular muscle covering the shoulder joint that allows arm to extend outward and to the side of the body
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Dendrites
Tree like branching of nerve fibers extending from a nerve cell; short nerve fibers that carry impulses toward the cell and receive impulses from other neurons
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Deoxyribonucleic acid
Abbreviated DNA; the blueprint material of genetic information; contains all the information that controls the function of every living cell
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Depressor anguli oris
Also known as triangularis muscle; muscle extending alongside the chin that pulls down the corner of the mouth
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Depressor labii inferioris
Also known as quadratus labii inferioris; muscle surrounding the lower lip that depresses the lower lip and draws it to one side
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Diaphragm
Muscular wall that separates the thorax from the abdominal region and helps control breathing
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Diencephalon
Located in the uppermost part of the midbrain; consists of two main parts the thalamus and hypothalamus
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Digestion
Breakdown of food by mechanical and chemical means
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Digestive enzymes
Chemicals that change certain kinds of food into a form that can be used by the body
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Digestive system
Also called the gastrointestinal system; responsible for changing food into nutrients and waste; consists of the mouth, stomach, intestines, salivary and gastric glands and other organs
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Digital nerve
Sensory-motor nerve that, with its branches, supplies impulses to the fingers
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Eleventh cranial nerve
Also known as accessory nerve; a motor nerve that controls the motion of the neck and shoulder muscles
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Endocrine glands
Also known as ductless glands; release secretions called hormones directly into the bloodstream which in turn influence the welfare of the entire body
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Endocrine system
Group of specialized glands that affect the growth development, sexual activities, and help of the entire body
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Epicranial aponeurosis
Tendon connecting the occipital a and the frontalis
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Epicranius
Also known as occipitofrontalis; the broad muscle that covers the top of the skull and consist of the occipital is and frontalis
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Epithelial tissue
Protective covering on body surfaces, such as the skin, mucous membranes, and lining of the heart; Digestive and respiratory organs; and glands
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Ethmoid bone
Light, spongy bone between the eye sockets that forms part of the nasal cavities
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Excretory system
Group of organs – including the kidneys, liver, skin, large intestine, and lungs – that purify the body by elimination of a waste matter
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Exhalation
Breathing outward; expelling carbon dioxide from the lungs
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Exocrine glands
Also known as duct glands; produce a substance that travels through small, tube – like ducts. Sweat and oil glands of the skin belong to this group
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Extensors
Muscles that straighten the wrist, hand, and fingers to form a straight line
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External Caorotid artery
Artery that supplies blood to the interior parts of the scalp, ear, face, neck, and side of the head
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External jugular vein
Vein located on the side of the neck that carries blood returning to the heart from the head, face, and Neck
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Facial artery
Also known as external maxillary artery; supplies blood to the lower region of the face, mouth, and nose
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Fifth cranial nerve
Also known as trifacial or trigeminal nerve; it is the chief sensory nerve of the face, and it serves as the motor nerve of the muscles that control chewing. It consists of three branches
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Flexors
Extensor muscles of the wrist, involved in flexing the wrist
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Frontal artery
Artery that supplies blood to the forehead and upper eyelids
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Frontal bone
Bone forming the forehead
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Frontalis
Front (anterior) portion of the epiceanius muscle of the scalp that raises eyebrows, draws the scalp forward, and causes wrinkles across the forehead
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Glands
Specialized organs that remove certain elements from the blood to convert them into new compounds
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Greater articular nerve
Nerve at the sides of the neck affecting the face, ears, neck, and paratoid gland
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Greater occipital nerve
Nerve located in the back of the head, affects the scalp as far up as the top of the head
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Heart
Muscular cone shaped organ that keeps the blood moving within the circulatory system
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Hemoglobin
Iron containing protein and red blood cells that binds to oxygen
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Histology
Also known as microscopic anatomy; the study of the structure and composition of tissue
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Hormones
Secretions produced by one of the endocrine glands and carried by the bloodstream or body fluid to another part of the body, or a body organ, to stimulate functional activity or secretion, such as insulin, adrenaline, and estrogen
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Humerus
Uppermost and largest bone in the arm, extending from the elbow to the shoulder
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Hyoid bone
U–shaped bone at the base of the tongue that supports the tongue and its muscle
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Inferior labial artery
Supplies blood to the lower lip
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Infraorbital artery
Artery originates from the internal maxillary artery and supplies blood to the eye muscles
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Infraorbital nerve
Nerve that affects the skin of the lower eyelid, side of the nose, upper lip, and mouth
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Infratrochlear nerve
Nerve that affects the membrane and skin of the nose
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Ingestion
Eating or taking food into the body
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Inhalation
Breathing in through the nose or mouth, and thus oxygen is absorbed by the blood
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Insertion
Point where the skeletal muscle is attached to the bone or other more movable body part
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Integumentary system
The skin and it's accessory organs, such as the oil and sweat glands, sensory receptors, hair, and nails
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Internal carotid artery
Artery that supplies blood to the brain, eyes, eyelids, forehead, nose and internal air
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Internal jugular vein
Vein located at the side of the neck to collect blood from the brain and parts of the face and neck
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Interstitial fluid
Blood plasma found in the spaces between tissues
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Joint
Connection between two or more bones of the skeleton
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Kidneys
One of the organs which supports the excretion system by eliminating water and waste products
102
Lacrimal bones
Small, thin bones located in the anterior medial wall of the orbits e(yesockets)
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Lateral pterygoid
Muscles that coordinate with the masseter, temporalis, and medial pterygoid muscles to open and close the mouth and bring the jaw forward; sometimes referred to as chewing muscles
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Latissimus Dorsi
Large, flat, triangular muscle covering the lower back
105
Levator anguli oris
Also known as caninus, is a muscle that raises the angle of the mouth and draws it inward
106
Levator labii superioris
Also known as quadratu labii superioris; muscles surrounding the upper lip that elevates the upper lip and dilates the nostrils, as in expressing distaste
107
Liver
One of the organs which supports the excretory system by removing toxic waste products of digestion
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Lungs
Spongy tissues composed of microscopic cells in which inhaled air is exchanged for carbon dioxide during one respiratory cycle
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Lymph
Clear, yellowish fluid that circulates in the lymph spaces (lymphatic) of the body, carries waste and impurities away from the cells
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Lymph capillaries
Lymphatic vessels that occur in clusters and are distributed throughout most of the body
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Lymph nodes
Gland- like structures found inside lymphatic vessels; filter the lymphatic vessels and help fight infection
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Lymphatic/immune system
Vital to the circulatory and to the immune system made up of lymph, lymph nodes, the thymus gland, the spleen, the lymph vessels that act as an aid to the blood system; the lymphatic and immune system are closely connected in that they protect the body from disease by developing immunities and destroying disease causing microorganisms
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Mandible
Lower Jawbone; largest and strongest bone of the face
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Mandibular nerve
Branch of the fifth cranial nerve that supplies the muscles and skin of the lower part of the face; also, nerve that affects the muscles of the chin and lower lip
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Masseter
One of the muscles that coordinate with the temporalis, medial pterygoid, and lateral pterygoid muscles to open and close the mouth and bring the jaw forward; sometimes referred to as chewing muscles
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Maxillary bones
Form the upper jaw
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Maxillary nerve
Branch of the fifth cranial nerve that supplies the upper part of the face
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Medial pterygoid
One of the muscles that coordinate with the masseter, temporalis, and lateral pterygoid muscles to open and close the mouth and bring the jaw forward; sometimes referred to as chewing muscles
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Median nerve
Nerve, smaller than the ulnar and radial nerves, that supplies the arm and hand
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Melasma
Also referred to as pregnancy mask; skin condition that is triggered by hormones that causes darker pigmentation in areas such as on the upper lip and around the eyes and cheeks
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Mental nerve
Nerve that affects the skin of the lower lip and chin
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Mentalis
Muscle that elevates the lower lip and raises and wrinkles the skin of the chin
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Metabolism
(1)Chemical process taking place in living organisms whereby the cells are nourished and carry out their activities. (2)The process of changing food into forms the body can use as energy. Metabolism consists of two parts anabolism and catabolism
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Metacarpus
Also known as palm, consists of five long, slender bones called metacarpal bones
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Middle temporal artery
Artery that supplies blood to the temples
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Mitosis
Cells dividing into two new cells (daughter cells); the usual process of cell reproduction of human tissues
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Mitral valve
Also known as bicuspid valve; a valve in which, from the left atrium, the blood flows through into the left ventricle
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Motor nerves
Also known as efferent nerves; carry impulses from the brain to the muscles or glands. These transmitted impulses produce movement
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Muscle tissue
Tissue and moves various parts of the body
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Muscular system
Body system that covers, shapes, and supports the skeleton tissue; contracts and moves various parts of the body
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Myology
Study of the nature, structure, function, and diseases of the muscles
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Nasal bones
Bones that form the bridge of the nose
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Nasal nerve
Nerve that affects the point and lower sides of the nose
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Nasalis muscle
Two – part muscle which covers the nose
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Nerve tissue
Tossue that controls and coordinates all body functions
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Nerves
Whitish cords made up of bundles of nerves fibers held together by connective tissue, through which impulses are transmitted
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Nervous system
Body system composed of the brain, spinal cord, and nerves; controls and coordinates all other systems and make them work harmoniously and efficiently
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Neurology
The scientific study of the structure, function, and pathology of the nervous system
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Neuron or nerve cell
The basic unit of the nervous system, consisting of a cell body, nucleus, dendrites and axon
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Nonstriated muscles
Also known as involuntary, visceral, or smooth muscles; function automatically, without conscious will
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Nucleoplasm
Fluid within the nucleus of the cell that contains proteins and DNA; determines our genetic makeup
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Nucleus
The Central Part, core. (1) in histology the dense, active protoplasm found in the center of a eukaryotic cell that acts as a generic control center; it plays an important role in cell reproduction and metabolism. (2) in chemistry, the center of the Atom, where protons and neutrons are located
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Occipital artery
Artery that supplies blood to the skin and muscles of the scalp and back of the head up to the crown
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Occipital bone
Hindmost bone of the skull, below the parietal bones, forms the back of the skull above the nape
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Occipitalis
Back of the epicranius; muscle that draws the scalp backward
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Ophthalmic nerve
Branch of the fifth cranial nerve that supplies the skin of the forehead, upper eyelids, and interior portion of the scalp, orbit, eyeball, and nasal passage
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Orbicularis oculi
ring muscle of the eyesocket; closes the eyelid
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Orbicularis oris
Flat band around the upper and lower lids that compresses, contracts, puckers, and wrinkles the lips
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Organelle
Small structures or miniature organs within a cell that have their own function
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Organs
Structures composed of specialized tissues and performing specific functions in plants and animals
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Origin
Part of the muscle that does not move; it is attached to the skeleton and is usually part of skeletal muscle
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Is
Means bone and is used as a prefix in many medical terms, such as Osteoarthritis, a joint disease
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Osteology
Study of anatomy, structure, and function of the bones
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Ovaries
Function and sexual reproduction as well as determining male and female sexual characteristics
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Palatine bones
Two bones that form the hard palate of the mouth
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Pancreas
Secretes enzyme – producing cells that are responsible for digesting carbohydrates, proteins, and fats. That islet of Langerhans cells within the pancreas control insulin and glucagon production
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Parasympathetic division
Part of the autonomic nervous system, it operates under normal non-stressful situations, such as resting. It also helps to restore calm and balance to the body after a stressful event
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Parathyroid glands
Regulate blood calcium and phosphorus levels so that the nervous and muscular systems can function properly
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Parietal artery
Artery that supplies blood to the side and crown of the head
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Parietal bones
Bones that form the sides and top of the cranium
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Pectoralis major and minor
Muscles of the chest that assist the swinging movements of the arm
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Pericardium
Double – Layered membranous sac enclosing the heart; made of epithelial tissue
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Peripheral nervous system
Abbreviated PNS; system of nerves and ganglia that connects the periphery parts of the body to the central nervous system; has both sensory and motor nerves
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Peristalsis
Moving food along the digestive track
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Phalanges (singular: phalanx)
Also known as digits; are the bones in the fingers, three in each finger and two in each thumb, totaling 14 bones
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Physiology
Study of the functions or activities performed by the body's structures
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Pineal gland
A gland located in the brain. Plays a major role in sexual development, sleep, and metabolism
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Pituitary gland
A gland found in the center of the head. The most complex organ of the endocrine system. It affects almost every physiologic process of the body: growth, blood pressure, contractions during childbirth, breastmilk production, sexual organ functions in both women and men, thyroid gland function, and the conversion of food into energy (metabolism)
169
Plasma
Fluid part of the blood and lymph that carries food and secretions to the cells and carbon dioxide from the cells
170
Platelets
Also known as thrombocytes; much smaller than red blood cells; contribute to the blood clotting process, which stops bleeding
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Platysma
Broad muscle extending from the chest and shoulder muscles to the side of the chin; responsible for depressing the lower jaw and lip
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Posterior auricular artery
Artery that supplies blood to the scalp, behind and above the ear
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Posterior auricular nerve
Nerve that affects the muscle behind the ear at the base of the skull
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Procerus
Muscle that covers the bridge of the nose, depresses the eyebrows, and causes wrinkles across the bridge of the nose
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Pronators
Muscle that turn the hand inward so that the palm faces downward
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Protoplasm
Color less, jelly like substance in cells; contains food elements such as proteins, fats,, carbohydrates, mineral salts, and water
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Pulmonary circulation
Sends the blood from the heart to the lungs to be purified, then back to the heart again
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Radial artery
Artery, along the numerous branches, that supplies blood to the thumb side of the arm and the back of the hand; supplies the muscles of the skin, hands, fingers, wrist, elbow and forearm
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Radial nerve
Nerve that, with its branches, supplies the thumb side of the arm and back of the hand
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Radius
Smaller bone in the forearm on the same side as the thumb
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Red blood cells
Also known as red corpuscles or erythrocytes; produced in the red bone marrow; blood cells that carry oxygen from the lungs to the body cells and transport carbon dioxide from the cells back to the lungs
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Reflex
Automatic reaction to a stimulus that involves the movement of an impulse from the sensory receptor along the sensory nerve to the spinal cord. A responsive impulse is sent along a motor neuron to a muscle, causing a reaction (for example, the quick removal of the hand from a hot object.) Reflexes did not have to be learned, they are automatic
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Reproductive system
Body system that includes the ovaries, uterine tubes, uterus and vagina in the female and the testes, prostate gland, penis and urethra in the male. The system performs the function of producing offspring and passing on the genetic code from one generation to another
184
Respiration
Process of inhaling and exhaling; the act of breathing; the exchange of carbon dioxide and oxygen in the lungs and within each cell
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Respiratory system
Body system consisting of the lungs and air passages; enables breathing, which supplies the body with oxygen and eliminates carbon dioxide as a waste product
186
Ribs
12 pairs of bones forming the wall of the thorax
187
Risorius
Muscle of the mouth that draws the corner of the mouth out and back, as in grinning
188
Scapula
Also known as shoulder blade; one of a pair of large, flat triangular bone of the shoulder
189
Sensory nerves
Also known as afferent nerves; carry impulses or messages from the sense organs to the brain, where sensations such as touch, cold, heat, sight, hearing, taste, smell, pain, and pressure are experienced. Sensory nerve endings called receptors are located close to the surface of the skin
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Serratus anterior
Muscle of the chest that assist in breathing and in raising the arm
191
Seventh cranial nerve
Also known as facial nerve; it is the chief motor nerve of the face. It emerges near the lower part of the ear and extends to the muscles of the neck
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Skeletal system
Physical foundation of the body, composed of the bones and movable and immovable joints
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Skin
External protective coating that covers the body. The body's largest organ; acts as a barrier to protect body systems from the outside elements
194
Smaller occipital nerve
Also known as lesser occipital nerve; located at the base of the skull, affects the scalp and muscles behind the air
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Sphenoid bone
Bone that joins all the bones of the cranium together
196
Spinal cord
Portion of the central nervous system that originates in the brain, extends down to the lower extremity of the trunk, and is protected by the spinal column
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Sternocleidomastoid
Abbreviated SCM; muscle of the neck that depresses and rotates the head
198
Sternum
Also known as breast bone; the flat bone that forms the ventral support of the ribs
199
Striated muscles
Also known as skeletal or voluntary muscles; attached to the bones and make up a large percentage of body mass; controlled by the will
200
Submental artery
Artery that supplies blood to the chin and lower lip
201
Superficial temporal artery
A continuation of external carotid nerve artery; artery that supplies blood to the muscles of the front, side, and top of the head
202
Superior labial artery
Artery that supplies blood to the upper lip and region of the nose
203
Supinator
Muscle of the forearm that rotates the radius outward and the palm upward
204
Supraorbital artery
Artery that supplies blood to the upper eyelid and forehead
205
Supraorbital nerve
Nerve that affects the skin of the forehead, scalp, eyebrow, and upper eyelid
206
Supratrochlear nerve
Nerve that affects the skin between eyes and upper side of the nose
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Sympathetic division
Part of the autonomic nervous system that stimulates or speeds up activity and prepares the body for stressful situations, such as in running from a dangerous situation, or competing in a sports event
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Systemic or general circulation
Circulation of blood from the heart throughout the body and back again to the heart
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Temporal bones
Bones forming the sides of the head and the ear region
210
Temporalis muscle
Temporal muscle; one of the muscles involved and mastication (chewing)
211
Testes
Male organs which produce the male hormone testosterone
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Thorax
Also known as chest or pulmonary trunk; consists of the sternum, ribs, and thoracic vertebrae; elastic, bony cage that serves as a protective framework for the heart, lungs, and other internal organs
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Thyroid gland
A gland located in the neck; controls how quickly the body burns energy (metabolism), makes proteins, and how sensitive the body should be to other hormones
214
Tibial nerve
Division of the sciatic nerve, passes behind the knee; subdivides and supplies impulses to the knee, the muscles of the calf, the skin of the leg, and the sole, heel, and underside of the toes
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Tissue
Collection of similar cells that perform a particular function
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Transverse facial artery
Artery that supplies blood to the skin and the masseter
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Trapezius
Muscle that covers the back of the neck and upper and middle region of the back; stabilizes the scapula and shrugs the shoulders
218
Triceps
Large muscle that covers the entire back of the upper arm and extends the forearm
219
Tricuspid valve
The heart valve that prevents backflow between the right atrium on the right ventricle
220
Turbinal bones
Then layers of spongy bone on either of the outer walls of the nasal depression
221
Ulna
Inner and larger bone of the forearm, attached to the wrist on the side of the little finger
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Ulnar artery
Artery that supplies blood to the muscle of the little finger side of the arm and palm of the hand
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Ulnar nerve
Sensory motor nerve that, with its branches, affects the little finger side of the arm and palm of the hand
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Valves
Structures that temporarily close a passage or permit flow in one direction only
225
Vascular system
Body system consisting of the heart, arteries, veins, and capillaries for the distribution of blood throughout the body
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Veins
Thin walled blood vessels that are less elastic arteries; they contain cuplike valves to prevent backflow and carry impure blood from the various capillaries back to the heart and lungs
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Ventricle
I thick walled, lower chamber of the heart that receives blood from the atrium. There is a right ventricle and a left ventricle
228
Venules
Small vessels that connects the capillaries to the veins. They collect blood from the capillaries and drain it into veins
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Vomer bone
Flat, then bone that forms part of the nasal septum
230
White blood cells
Also known as white corpuscles or leukocytes; perform the function of destroying disease causing germs
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Zygomatic bones
Also known as malar bones or cheekbones; bones that form the prominence of the cheeks; the cheekbones
232
Zygomatic nerve
Nerve that affects the skin of the temple, side of the forehead, and upper part of the cheek
233
Zygomaticus major and minor
Muscles on both sides of the face that extend from the zygomatic bone to the angle of the mouth, these muscles elevate the lip, pull the mouth upward and backward, as when you are laughing or smiling
