Skeletal and Muscular Systems Flashcards
(26 cards)
The study of the structure of living organisms
Anatomy
The study of body parts and how the performance of one of affect the others
Physiology
The basic structure of life; come in a wide variety of shapes and sizes and have a variety of functions; all mammalian cells contain a cell membrane, organelle’s, cytoplasm, and a nucleus.
Cell
Composed of groups of tissues that have a common function and work together
Organs
Identical or closely related cells group together
Tissue
Substances that move across the membrane require energy expenditure unlike passive transport
Active transport process
Cell reproduction by dividing to yield 2 identical cells
Mitosis
Points of attachment for your muscles, levers for muscle action, mineral storage structures, and sites for production of blood cell
Bones
Spongy bone that acts as a shock absorber; found near the center of the bone and houses the bone marrow
Cancellous bones
Highly structured series of bone layers found in the outer portions of the bone; composed of a series of tube like structures arranged so that the tube shafts are parallel to the bone shaft
Compact bone
The space through which blood vessels, lymphatic vessels, and nerves travel through compact bone
Haversian canal
The reddish Brown tissue found in the middle of bone; primarily responsible for producing blood cells, such as red blood cells, white blood cells, and platelets, from the stem cells
Bone marrow
The body’s central framework; includes the bones of the skull, spine, ribs, and sternum
Axial skeleton
Supports the axial skeleton; includes the bones of the legs, shoulders, and pelvis
Appendicular skeleton
Bands of tough fibrous connective tissue that connect bones at joints
Ligaments
Bands that attach muscles to bones
Tendons
Support the front end of the body during walking
Thoracic limbs
Support the rear end of the body during walking
Pelvic limbs
The connection between 2 bones that help hold bones together and give the skeleton flexibility for movement
Joints
The muscle that separates the thorax and the aptman
Diaphragm
The most abundant muscle tissue; also called voluntary muscle because it’s under voluntary control and appears striped under a microscope
Skeletal muscle
Involuntary, smooth muscle found in the internal organs such as the urinary bladder and blood vessels
Visceral muscle
Found only in the heart; somewhat striated in appearance but not under voluntary control
Cardiac muscle
Chemical substances released at the end of a nerve fiber by the arrival of a nerve impulse which, by diffusing across the synapse or Junction, cause the transfer of the impulse to another nerve fiber, muscle fiber, or some other structure
Neurotransmitters