Skeletal System Flashcards
(23 cards)
what is a skeleton?
its a framework for the body and provides protection, site for muscle attachment and is responsible for blood cell production
whats the definition of a joint?
a place where two or more bones meet in the body?
what are the names of the different types of joints?
ball and socket
pivot
hinge
condyloid
synovial
whats the most common type of joint in the body?
synovial
cartilage definition
prevents the rubber ends of bones rubbing together at joints
synovial fluid definition
lubricates the joint allowing the parts to move more freely
ligaments defintion
tough elastic fibres that link bones to bones
tendons defintion
connect muscles to bones
bursa definiton
a closed, fluid-filled sac found where tendons rub over bones
whats the function of the bursa?
to reduce friction between tendons and bones
joint capsule definition
a fibrous sac with an inner synovial membrane.
what’s the function of the joint capsule?
to enclose and strengthen the joint secreting synovial fluid
classification of the ball and socket joint
allows movement in all directions
examples of ball and socket joints in the body
shoulder
hip
classification of the hinge joint
only allow forward and backward movement
examples of hinge joints in the body
knee
elbow
classification of the pivot joint
only allows rotation in small movements
examples of the pivot joint in the body
atlas in the back of the neck
classification of condyloid joints
like a mini ball and socket joint. allows small movement in all directions
examples of ball and socket joints in the body
between the carpals and meta carpals in the wrist joint
classification of gliding joints
occur between the surfaces of two flat bones that are held together by ligaments
examples of gliding joints in the body
wrist, ankles, spine
