CHAPTER 7

Question 1

axial skeleton

Answer 1

80 bones, forms longitudinal axis of the body. supports head neck and trunk. protects the brain spine and organs inside the thorax

Question 2

fetal skull

Answer 2

skull bones are incomplete

Question 3

fontanels

Answer 3

fibrous membranes in gaps between cranial bones (soft spots), anterior, posterior, sphenoid, and mastoid. all closed by 24 months. unossified remnants of fibrous membranes allow infants head to be compressed during childbirth and they accomodate brain growth

Question 4

anterior fontanel

Answer 4

found between frontal and parietal bones

Question 5

posterior fontanel

Answer 5

between occipital and 2 parietal

Question 6

sphenoidal fontanel

Answer 6

junction where temporal, parietal, frontal, and sphenoid come together

Question 7

mastoid fontanel

Answer 7

parietal, occipital, and temporal come together (mastoid process)

Question 8

mandible

Answer 8

two bones at birth fuse at midline to form one bone by 3 yrs old

Question 9

skull

Answer 9

22 bones joined by sutures. cranial and facial

Question 10

neurocranium

Answer 10

enclose the brain, base and calvaria

Question 11

viscerocranium

Answer 11

facial bones, develop from pharyngeal arches

Question 12

foramina

Answer 12

holes where nerves and blood vessels pass

Question 13

cranium

Answer 13

divided into vault and base. functions enclose and protect the brain;