joe' study cards
Terms
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- sagittal plane
- divides body into right and left
- frontal plane
- divides body into front and back
- transverse plane
- divides body into top and bottom
- biomechanics
- study of motion produced by body and forces that are on it
- flexion - muscle flex
- angle of joint decreases
- extension
- angle of joint increases
- abuction
- takes extremity away from the midline
- adduction
- takes extremity toward the body
- scapular retraction
- shoulder blades come closer together
- scauplar protraction
- shoulder blades move further away
- scapular depression
- shoulder blades move down and together
- scapular elevation
- shoulder blades move up and away
- central nervous system
- brain and spinal cord
- peripheral nervous system
- all nerves outside spinal column
- muscles
- long cells that contract
- concentric contraction
- muscle gets shorter
- eccentric contraction
- lengthening of muscle
- isometric contraction
- muscle maintaining length
- motor neuron
- a single nerve and muscle fiber
- neuromuscle junction
- nerve joins muscle fiber
- bones
- skeletal system
- cartilage
- between bones, shok absorbers and lubrication
- joint
- 2 bones meet with ligament, cartilge and muscles
- ligament
- connect one bone to another allows movement one way and not another
- posture
- muscles and bones held together
- patella
- knee