Kinesiology Ch. 5
vector
arrow drawn to represent the line of pull of a muscle direction arrow head pointed shows us line of muscle being pulled length is magnitude of muscle's pull
muscles
nerve hits to create a movement MUSCLES ALONE DO NOT CREATE MOVEMENT
joint action
action is a specific cardinal plane movement of the body directional term describing direction of action state which body part moved during action state at which joint the action occured
planes of motion frontal
adduction abduction elevation depression inversion eversion
joints
allow movement also called articulation weight bearing, shock absorption, and stability
non-axial motion
body part that doesn't occur around an axis also known as gliding every aspect of body part moves at the same amount linear path translation
axial motion
body part that occurs about or around an axis also known as circular motion angular and rotary point closer to axis moves less and would transcribe in smaller circle
angular motion
direction of motion for every point on the body is through the same angle
planes of motion sagittal
flexion extension dorsiflexion plantarflexion
ipsilateral rotation
if a muscle rotates an axial body part toward the same side of the body as where it is located
contralateral rotation
if muscle rotates an axial body part toward the opposite side of the body from where it is located
joint capsules
limit movements
right lateral deviation
movement at a joint that brings a body part to the right movement occur in frontal or transverse plane axial or non-axial
curvilinear non axial motion
person body is at a curve and not straight
roll, spin, and glide
roll (axial) spin (axial) glide (non-axial)
rolling and spin axial movement
rolling movement is when the body part changes its position in space and one end of the bone moves more than the other end rolling can also be called rocking spinning is when the body part doesn't change its position in space; staying in same location
planes of motion transverse
rotation supination pronation horizontal flexion horizontal extension
rectilinear non axial motion
straight type of motion