SKELETAL SYSTEM Flashcards
what are the functions of the skeleton?
movement
protection
support
what does cartilage do?
and what does it stop from happening?
forms cushions between bones to stop them rubbing
it stops friction between the bones
what are the types of movement available at a hinge joint?
flexion
extension
what are the types of movement available at a ball and socket joint?
flexion extension adduction abduction rotation
what is the definition of flexion?
the decreasing of an angle at a joint
what is the definition of extension?
the increasing of an angle at a joint
what are the definitions of adduction and abduction?
adduction - the movement of a limb towards the centre line of the body
abduction - the movement of a limb away from the centre line of the body
what do ligaments join?
bone to bone
what do tendons join?
muscle to bone
define the term rotation
turning a limb clockwise or anti clockwise
what does exercise do to your ligaments and tendons?
they become stronger
what happens to your bones due to exercise?
their bone density increases
where can you find the ball and socket joint?
shoulder and hip
where can you find the hinge joint?
knee and elbow
what is plantar flexion?
the movement of your foot away from your body
