U6 Skeletal: Skull

Question 1

skull breakdown

Answer 1

8 cranials, 14 facials, 6 ear, hyoid

Question 2

cranial bone function

Answer 2

forms braincase, protects brain, ears, eyes

Question 3

frontal bone

Answer 3

forehead/anterior top

Question 4

parietal bone

Answer 4

2, posterior top/sides of skull

Question 5

temporal bone

Answer 5

2, skull side, holds three ear bones

Question 6

occipital bone

Answer 6

lower/posterior, spinal cord opening, 1st vertebra

Question 7

sphenoid bone

Answer 7

“bat”, holds pituitary gland

Question 8

ethmoid

Answer 8

crista galli to anchor cranial meninges, roof/walls of nasal cavities

Question 9

cranial meninges

Answer 9

brain/spinal cord coverings

Question 10

suture

Answer 10

immovable bone joints, sawtooth, prevent shifting

Question 11

main cranial sutures

Answer 11

coronal, squamosal, lambdoidal, sagittal

Question 12

mandible

Answer 12

lower jaw, only movable facial bone

Question 13

bone joint connections

Answer 13

sutures; mandible with condyloid joint to temporal

Question 14

maxillae

Answer 14

2, upper jawbone, mouth palate, teeth sockets

Question 15

nasal bone

Answer 15

2, nose bridges

Question 16

lacrimal bone

Answer 16

2, medial sides of orbits, tear canals

Question 17

zygomatic bone

Answer 17

2, cheekbones

Question 18

palatine bone

Answer 18

2, posterior of mouth palate

Question 19

vomer

Answer 19

lower nasal septum

Question 20

nasal conchae

Answer 20

3 pairs, sides of vomer, increase nasal mucosa surface area

Question 21

sinus

Answer 21

fluid/air cavity

Question 22

paranasal sinuses

Answer 22

open into nasal cavities, lined w mucus

Question 23

stuffed nose

Answer 23

paranasal sinuses can’t drain

Question 24

paranasal sinuses function

Answer 24

lightens skull, voice resonance

Question 25

mastoid sinuses

Answer 25

open into middle ear

Question 26

malleus, incus, stapes

Answer 26

auditory bone pairs, transmit vibrations for hearing