Part 1: Chp. 3 Flashcards
(96 cards)
kinetic chain
the concept that joints and segments have an effect on one another during movement
joint stability
ability to maintain or control joint movement or position, achieved by joint structure (ligaments and joint capsules) and the neuromuscular system
joint capsules
a ligamentous sac that surrounds the articular cavity of a freely movable joint
pronation
internal rotation of the forearm causing radius to cross diagonally over the ulna and palm to face posteriorly
example of pronation in feet
as foot transitions from heel strike to full body weight it pronates and forfeit some stability in exchange for mobility to absorb impact
supination
external rotation of the forearm that causes palm to face anteriorly
example of supination in feet
as foot pushes off, ankle moves back to supination to become rigid and stable again
Shoulder (stability or mobility and name)
glenohumeral for mobility
Shoulder Blade (stability or mobility and name)
scapulothoracic for stability
Thoracic spine (stability or mobility)
mobility
Lumbar spine (stability or mobility)
stability
Hip (stability or mobility)
mobility
Knee (stability or mobility)
stability
Ankle (stability or mobility)
mobility
Foot (stability or mobility)
stability
Planes of motion
describes anatomical movement in sagittal, transverse and frontal
Sagittal Plane
longitudinal plane that divides the body into right and left
Frontal Plane
longitudinal section that runs at a right angle to sagittal plane (anterior/posterior planes)
Transverse Plane
division of body into superior and inferior parts
Superior
upper
Inferior
lower
joint actions of sagittal plane
flexion, extension, plantar flexion, dorsiflexion
joint actions of frontal plane
abduction, adduction, ankle eversion and inversion
joint actions of transverse plane
rotation, horizontal shoulder adduction and abduction