Block 2 Topography of Skull

Question 1

floor of brain box

Answer 1

chondrocranium

Question 2

walls and roof of brain box

Answer 2

dermatochranium

Question 3

blank form the face and foregut skeleton

Answer 3

gills

Question 4

first gill arch is converted to these

Answer 4

upper/lower jaws, malleus, incus

Question 5

in humans, upper jaws fuse to blank

Answer 5

brain box

Question 6

second gill arch forms these

Answer 6

middle ear bones, styloid process, stylohyoid ligament, part of hyoid bone

Question 7

third gill arch forms these

Answer 7

bony support for tongue, hyoid

Question 8

subsequent arches form these

Answer 8

pharynx, larynx, trachea

Question 9

modified gill arches directly or indirectly associated with the brain box form this

Answer 9

splanchnocranium

Question 10

all but this arch is preformed in cartilage and either remains cartilage or converts to endochondral bone

Answer 10

first gill arch

Question 11

brain box is composed of blank, blank, and blank where the jaws and face attach

Answer 11

chondrocranium, dermatocranium, splanchnocranium

Question 12

artery supplying brain, chondrocranium, including special senses

Answer 12

internal carotid

Question 13

artery supplying dermato and splanchnocranium

Answer 13

external carotid

Question 14

cranial nerve that supplies first arch

Answer 14

5

Question 15

cn that supplies second arch

Answer 15

7

Question 16

cn that supplies third arch

Answer 16

9

Question 17

cn that supplies remaining arches (4,5,6,7)

Answer 17

10