Skeletal system part 2 Flashcards by RIA RICCI RABISANTO

Hollow portions of bones surrounding the nasal cavity

Paranasal Sinuses

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Lighten the skull
Give resonance and amplification to voice

paranasal sinuses

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only bone that does not articulate with another bone.
Serves as a moveable base for the tongue

Hyoid Bone

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large compared to the infants total body length

fetal skull

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fibrous membranes connecting the cranial bones. It Allow the brain to grow

Fontanelles

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The Fontanelles Convert to bone within ___ months after birth

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The largest fontanel is the diamond shaped

anterior fontanel

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gradually converted to bone during the early part of infancy and can no longer be felt by 22 to 24 months after birth

Fontanelles

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It is separated by intervertebral discs

Vertebrae

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The _____ has a normal curvature

spine

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Lower part of your pelvis that’s sometimes referred to as your sit bones.

ischial tuberosity

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The spinal curvatures in the ________ & ___________ are referred to as primary curvatures because they are present when we are born.

Thoracic and sacral regions

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together the two primary curvatures produce the _ shaped spine of the new born baby

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The curvatures in the ___________ & __________ are referred to as secondary curvatures because they develop sometime after birth.

cervical and lumbar region

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The _________ curvature appears when a baby begins to raise its head,

cervical

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The ______ curvature develops when the baby begins to walk

Lumbar

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a sideways curvature of the spine that most often is diagnosed in adolescents

Scoliosis

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an exaggerated, forward rounding of the upper back.

Kyphosis

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the inward curve of the lumbar spine (just above the buttocks)

Lordosis

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In the Cervical vertebrae, the ______ C1 has no body

atlas

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In the Cervical vertebrae, the _____ (C2) acts as a pivot for the rotation of the atlas

Axis

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The typical cervical vertebrae ________________ are the smallest, lightest vertebrae

(C3 through C7)

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In the Cervical vertebrae, C1 and C2 are form the

Neck Region of the spine

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The only vertebrae to articulate with the ribs

Thoracic Vertebrae

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The Thoracic Vertebrae is composed of

12 bones

The Cervical Vertebrae is composed of

7 bones

Most of the stress on the vertebral column occurs in that region , these are the sturdiest of the vertebrae

Lumbar Vertebrae

The Lumbar Vertebrae is composed of

5 bones

It is Formed by the fusion of the 5 vertebrae

Sacrum

It Is the human tail bone It is formed from the fusion of three to five tiny, irregularly shaped vertebrae

Coccyx

the first seven pairs (1 to 7) attach directly to the sternum by costal cartilages

True ribs (vertebrosternal ribs)

are connected to the sternum via individual costal cartilages that join together and attach collectively to the costal cartilage (vertebrochondral ribs)

False ribs, pairs,( 8th to 10th)

They still are false ribs They are not attach to the sternum at all. Instead their small costal cartilages terminate within the musculature of the lateral abdominal wall

Floating ribs (11 – 12)

Floating ribs are also known as

vertebral ribs

Ribs articulate ____________ with the T1- T12 thoracic vertebrae, and most attach anteriorly via the costal cartilages to the sternum

posteriorly

Is a hollow space surrounded by the rib cage and the diaphragm that contains the heart, lungs, esophagus, thymus, sympathetic trunk, and the great vessels

Thoracic Cavity

specialized accessory glands of the skin that secrete milk They are situated in the pectoral region and their blood supply and lymphatic drainage are largely related to the armpit or axillary lymph nodes. They lies in the superficial fascia covering the anterior chest wall

Breast

an extension of the mammary gland continues upward and laterally , pierces the deep fascia at the lower border of the pectoralis major muscle and enters the axilla. It enlarges and assumes its hemispherical shape in females after puberty under the influence of the ovarian hormones.

Axillary tail

3 parts of Appendicular Skeleton

Limbs (appendages) Pectoral girdle Pelvic girdle

composed of 126 bones of the limbs (appendages), pectoral and the pelvic girdles which attach the limbs to the axial skeleton

Appendicular Skeleton

These bones allow the upper limb to have exceptionally free movement

Pectoral (Shoulder) Girdle

the Pectoral (Shoulder) Girdle is composed of 2 bones which are

Clavicle and scapula

Also known as the collarbone

Clavicle

Also known as the shoulder blade

Scapula

a slender, doubly curved bone. It attaches to the manubrium of the sternum medially and to the scapula laterally

Clavicle

are triangular in shaped and are called commonly as wings because they flare when we move our arms posteriorly

scapulae or shoulder blades

Each shoulder girdle attaches to the axial skeleton at only one point the __________ joint

sternoclavicular

The scapulae or shoulder blades are triangular in shaped and are called commonly as ______

Wings

The arm is formed by a single bone

Humerus

__________ separate bones form the skeletal framework of each upper limb They formed the foundations of the arm, forearm and hand

Thirty

formed by a single bone the humerus which is a typical long bone

Arm

Two bones the radius and the ulna form the skeleton of the forearm When the body is in an anatomical position the radius is the lateral bone that it is on the thumb side of the forearm

Forearm

The forearm is composed of two bones which are

radius and ulna

When the body is in an anatomical position the radius is the ________ bone that it is on the thumb side of the forearm

lateral

When the upper limb is in the anatomical position, the ulna is the _________ bone on the little finger side of the forearm

medial

Both the ulna and the radius have a __________________ at their distal end

styloid process

The wrist is composed of ___ bones

The palm is composed of ___ bones

The fingers are composed of ___ bones

The wrist bones are called

Carpals

The palm bones are called

Metacarpels

The finger bones are called

Phalanges

There are 8 carpal bones arranged in two irregular rows of four bones each, form the part of the hand called the _______ or more commonly the wrist.

carpus

the 8 carpal bones

Hamate trapezium Pisiform trapezoid Triquetrum scaphoid Lunate capitate

The total weight of the upper body rests on the _______

pelvis

Are also known as Hip bones

Coxal bones

Each hip bone (coxal bone) is formed by the fusion of three bones:

Ilium Ischium Pubic bone

The pelvic girdle Protects several organs

Reproductive organs Urinary bladder Part of the large intestine

a large, flaring bone that forms most of the hip bone

Ilium

the “sit down” bone because it forms the most inferior part of the coxal bone

Ischium

the most anterior part of the coxal bone

pubis or pubic bone

Skeletal system part 2 Flashcards

(71 cards)