chapter 7 & 8 - the axial and appendicular skeleton Flashcards
where is the axial skeleton located?
down the center of the body
where is the appendicular skeleton?
upper/lower limbs, bones that form girdles that connect limbs to axial skeleton
what is the keystone bone?
the sphenoid bone
how many facial bones are there?
14
how many cervical vertebrae are there?
7 (c1-c7)
how many thoracic vertebrae are there?
12 (t1-t12)
how many lumbar vertebrae are there?
5 (l1-l5)
what are the bones of the vertebral column?
7 cervical
12 thoracic
5 lumbar
what bone is at the end of the spine?
coccyx
what two bones are at the bottom of the spine?
sacrum and coccyx
what is another name for c1?
atlas
what is the atlanto-occipital joint responsible for?
flexion and extension (nodding head yes)
what is the c2 called?
axis
what is the atlanto-axal joint responsible for?
rotation (shaking head no)
what are the two parts to a disc?
annulus fibrosis and nucleus pulposus
what is the outer tough fibrocartilage of the vertebral discs?
annulus fibrosis
what is the inner, gelatinous portion of the vertebral discs?
nucleus pulposus
what are the three curves of the spine?
cervical, lumbar, and thoracic
what type of curve is the cervical and lumbar curve?
lordotic/convex
what type of curve is a convex curve?
lordotic
what type of curve is concave?
kyphotic
what type of curve is the thoracic and sacral curve?
kyphotic/concave
what is an abnormal curvature in upper back?
hyperkyphosis