Lecture 12

Question 1

___________ bones that touch brain

Answer 1

cranial bones

Question 2

Paired cranial bones

Answer 2

parietal and temporal bone

Question 3

unpaired cranial bones

Answer 3

frontal, occipital, sphenoid, ethmoid

Question 4

______ bones do not touch the brain

Answer 4

facial

Question 5

Paired fascial bones

Answer 5

maxillae, palatines, nasals, inferior nasal conchae, zygomatic, lacrimals

Question 6

Unpaired facial bones

Answer 6

vomer, mandible

Question 7

What are the 4 fascial sinus

Answer 7

• synoid sinus
• frontal sinus
• ethmoid sinus
• maxillary sinus

Question 8

Which sinus has poor drainage and often results in infection

Answer 8

maxillary sinus

Question 9

What comes out of and which bone is this part of:

foramen magnum

Answer 9

• spinal cord

- occipital

Question 10

What comes out of and which bone is this part of:

cribriform plate

Answer 10

• cranial nerve 1

- ethmoid

Question 11

What comes out of and which bone is this part of:

optic canal

Answer 11

-cranial nerve 2

sphenoid

Question 12

What comes out of and which bone is this part of:

superior orbital fissure

Answer 12

-cranial nerves 3, 4, 5, 6

spenoid

Question 13

What comes out of and which bone is this part of:

supraorbital foramen

Answer 13

-cranial nerve 5

frontal bone

Question 14

What comes out of and which bone is this part of:

inferior orbital fissure

Answer 14

-cranial nerve 3, 4, 5, 6

sphenoid and maxilla

Question 15

What comes out of and which bone is this part of:

infraorbital foramen

Answer 15

• infraorbital nerve

- maxilla

Question 16

What comes out of and which bone is this part of:

mental foramen

Answer 16

• inferior alveolar nerve

- mandible

Question 17

What comes out of and which bone is this part of:

internal auditory meatus

Answer 17

• cranial nerve 7
• cranial nerve 8
• temporaal

Question 18

What comes out of and which bone is this part of:

jugular foramen

Answer 18

-jugular vein, cranial nerves 9, 10, 11

Question 19

What comes out of and which bone is this part of:

carotid canal

Answer 19

• carotid artery

- temporal

Question 20

What comes out of and which bone is this part of:

external auditory meatus

Answer 20

• enternal ear hole
• auditory tube
• temporal bone

Question 21

ethmoid, most of the sphenoid, base of the occipital, petrous part of temporal

Answer 21

Chondrocranium

Question 22

small part of sphenoid, the ear ossicles, the styloid process, the hyoid, laryngeal cartilages

Answer 22

Visceral Cranium

Question 23

mostly intramembranous, and is everything else

Answer 23

Dermatocranium –

Question 24

_____________ no dermatocranium

Answer 24

jawless fishes –

Question 25

_______________– like sharks, with chondrocranium and jaws formed from first 2 arches

Answer 25

gnathostomes (jawed fishes)

Question 26

_______________– formation of dermatocranium

Answer 26

bony fishes and tetrapods

Question 27

______________– a new jaw joint in the dermatocranium and ear ossicles from old jaw bones

Answer 27

mammals

Question 28

Summary:

Arch 1 forms

Answer 28

mallus and incus

Question 29

Summary:

Arch 2 forms

Answer 29

stapes and styloid process of temporal bone

Question 30

Summary

Arch 3 forms

Answer 30

hyoid

Question 31

Summary:

Arch 4 and 5 forms

Answer 31

laryngeal cartilage

Question 32

Summary

Pouch 1 forms

Answer 32

ear hole

Question 33

Summary

Pouch 2 forms

Answer 33

palantinc tonsol

Question 34

Summary

Pouch 3 forms

Answer 34

parathyroid gland

Question 35

Summary

Pouch 4 forms

Answer 35

thymus