the vertebral column encloses and protects the
spinal cord
the number of separate bones in the vertebral column of an adult is
26
what of vertebrae support weight of head and trunk
vertebral column
what separate adjacent vertebrae and soften forces created by walking
intervertebral
pedicles laminae and what of vertebra form vertebral arch
spinous process
tbe intervertebral foramino provide pasagewyas for
spinal nerves
transverse foramina of cervical vertebrae serves as passageways for
vertebral arteries leading to brain
the first vertebra is called
atlas
the second vertebra is called
axis
when the head is moved from side to side the first vertebra pivots around what of second vertebra
dens
what vertebrae have the largest and strongest bodies
lumbar
the number of vertebrae that fuse to form sacrum is
5
the upper anterior margin of sacrum that projects forward is called
sacroiliac
an opening that exists at tip of sacral canal is called
sacral promontory
7 of these, small size, small body, c2 thru c6 , has transverse foramina
cervical
12, intermediate size, pointed, angled, downward, no transverse foramina
thoracic
5, large, short blunt horizontal no transverse foramina
lumbar
the adult skeleton of most men and women contains a total of how many bones
206
the last two pairs of ribs that have no cartilaginous attachments to sternum are called
floating ribs
there are how many pairs of true ribs
7
costal cartilage is made of what kind of tissue
hyaline
the manubrium articulates with the what on superior border
clavicles
the three general functions of thoracic cage are
protects heart lungs abdominal , suppoorts bones of pectoral girdle, visceral organs