Joints and Joint movements Flashcards
What are joints free to do
move
what percentage of the body are synovial joints
90%
what is retained in a packet in the synovial membrane
synovial fluid
what contains synovial fluid
synovial joints
where is synovial fluid retained
inside the synovial membrane
What does the synovial membrane do
lubricate or oils the joint
what do ligaments do
hold all moving parts together
what are the 3 functions of articular cartilage
hard, smooth, white
what are in synovial joints
structures
what does the articular cartilage cover
the end of long bones to prevent friction
what are the 2 functions of the ligaments
strong, slightly elastic
what do the ligaments hold together
two bones to stabilise a joint
what is the synovial membrane
a layer that lines the joint
what does the synovial membrane produce and contain
synovial fluid
what does menisci act as
shock absorbers
what are menisci
pads of tissue between the articular cartilage
what do bursae prevent
friction between ligaments and bones
what is bursae
small fluid filled stacks
what is a joint capsule
a protective layer around the joint
what is the movement for flexion and extension
back and forwards
where does flexion and extension take place
hip, shoulder, leg
what is the movement of lateral flexion
side to side
where does lateral flexion take place
spine
what is the movement of horizontal flexion and horizontal extension
gates
where does horizontal flexion and horizontal extension take place
socket joints
where does medical and lateral rotation take place
ball and socket joints
what is the movement of circumduction
windmills
what is circumduction
flexion, extension, abduction, adduction
where does pronation and supination take place
radio - ulna joint
what is the movement of pronation and supination
carrying bowl and hand movement
where does plantarflexion and dorsiflexion take place
at the ankle
what is the movement of plantarflexion and dorsiflexion
downwards toes into the ground and backwards
