Ch. 7

Question 1

sacral promontory

Answer 1

where the 1st sacral vertebrae bulges into pelvic cavity

Question 2

where does the ala develop from

Answer 2

fused rib elements

Question 3

purpose of the ventral foramina found on the sacrum

Answer 3

passage for ventral rami of sacral spinal nerves

Question 4

purpose of the dorsal foramina found on the sacrum

Answer 4

passage for dorsal rami of sacral spinal nerves

Question 5

purpose of the thoracic cage

Answer 5

protects thoracic organs, supports shoulder girdle and upper limbs, provides attachment sits of many muscles of the back

Question 6

the body of the sternum articulates with which structures

Answer 6

articulates with costal cartilage of ribs 2-7

Question 7

describe cleft palate

Answer 7

common congenital disorder, R and L halves of plate fail to fuse medially

Question 8

describe stenosis of the lumbar spine

Answer 8

narrowing of vertebral canal, can compress roots of spinal nerves

Question 9

scoliosis

Answer 9

abnormal lateral curvature

Question 10

kyphosis

Answer 10

exaggerated thoracic curvature

Question 11

lordosis

Answer 11

accentuated lumbar curvature; “swayback”

Question 12

what are fontanelles

Answer 12

unossified remnants of membranes

Question 13

what are the 4 different endochondral bones of the skull

Answer 13

occipital, sphenoid, ethmoid, and parts of the temporal bone