bones and muscles Flashcards
flexion
decreasing the angle at a joint
extension
increasing the angle at a joint
abduction
movement away from the midline of the body
adduction
movement towards the midline of the body
plantarflexion
increasing the angle at ankle joint to point the toes
dorsiflexion
decreasing the angle at the ankle joint to pull the toes up towards the tibia
hyperextension
increasing the angle beyond 180• between the bones of a joint
joint
where 2 or more bones meet
articulating bones
bones that meet at a joint
shoulder joint type
and articulating bones
ball and socket
scapula and humerus
elbow joint type
and articulating bones
hinge joint
humerus
ulna
radius
knee joint type
and articulating bones
hinge
femur
tibia
hip joint type
and articulating bones
ball and socket
pelvis acetabulum
femur
foot joint type
and articulating bones
hinge
tibia and fibula
talus
joint movement at the shoulder
horizontal adduction
horizontal abduction
rotation
addiction
abduction
circumduction
hyperextension
flexion
extension
joint movement at the elbow
flexion
extension
joint movement at the knee
flexion
extension
joint movement at the hip
adduction
abduction
flexion
extension
rotation
hyperextension
horizontal adduction
horizontal abduction
joint movement at the foot
plantarflexion
dorsiflexion
antagonistic pairs
when one muscle contracts and the other muscle relaxes
pairs of muscles
bicep and tricep
hip flexor and gluteals maximus
hamstring and quadriceps
tibialis anterior and gastrocnemius
isometric movement
occurs when a muscle is acting against a resistance
muscle contracts without movement or shortening
isotonic concentric contraction
a muscle shortens under tension
upwards phase of a bicep curl, the biceps contract and shorten to produce flexion at the elbow
eccentric isotonic contraction
muscle lengthens under tension
performs negative work
works as a break to control movement
downward phase of a press up, triceps lengthens under tension to control the movement