L3 - bones and joints

there are two divisions of the skeletal system. what are they?

axial and appendicular

how many bones does the axial division include and what structures does it contain

• 80 bones

• skull

• vertebral column

• rib cage

how many bones does the appendicular division include and what structures does it contain

• 126 bones

• shoulder girdle and upper limbs

• pelvic girdle and lower limbs

there are smooth articulating surfaces on a bone, which may be known as the head, condyle and facet. what is the difference between each of them in terms of the function

• head - ball and socket joint

• condyle - joints suited for hinge-movement (usually where two bones meet each other)

• facet - sliding or gliding movements

what is an example of a ball and socket joint?

head of femur fitting into acetabulum of pelvis