Skull Openings

Question 1

anterior ethmoidal foramen

Answer 1

anterior ethmoidal VAN

Question 2

carotid canal

Answer 2

internal carotid artery and plexus

Question 3

choana

Answer 3

air and mucus

Question 4

condylar canal*

Answer 4

emissary vein from sigmoid sinus to vertebral vein

Question 5

eustachian tube

Answer 5

air and mucus

Question 6

external acoustic meatus

Answer 6

sound waves; earwax

Question 7

foramen cecum*

Answer 7

emissary vein from superior sagittal sinus to veins of external nose

Question 8

foramen lacerum

Answer 8

deep petrosal nere

Question 9

foramen magnum

Answer 9

spinal cord and meninges; anterior and posterior spinal AV, spinal accessory n, vertebral AV

Question 10

foramen ovale

Answer 10

mandibular division of trigeminal; lesser petrosal nerve; accessory meningeal AV

Question 11

foramen rotundum

Answer 11

maxillary division of trigeminal

Question 12

foramen spinosum

Answer 12

middle meningeal AV; meningeal branch of mandibular nerve

Question 13

greater palantine foramen

Answer 13

greater palantine VAN

Question 14

hypoglossal canal

Answer 14

hypoglossal n

Question 15

incisive fossa

Answer 15

nasopalatine n; sphenopalatine AV; greater palatine AV

Question 16

inferior orbital fissure

Answer 16

maxillary division of trigeminal

Question 17

infraorbital foramen

Answer 17

infraorbital VAN

Question 18

internal acoustic meatus

Answer 18

facial and vestibulocochlear n; labyrinthine A

Question 19

jugular foramen

Answer 19

sigmoid sinus becoming internal jugular vein; glossopharyngeal, vagus, and spinal accessory nerve

Question 20

lacrimal fossa and nasolacrimal canal

Answer 20

lacrimal sac to lacrimal duct

Question 21

lesser palantine foramen

Answer 21

lesser palantine VAN

Question 22

mandibular foramen

Answer 22

inferior alveolar VAN

Question 23

mastoid foramen*

Answer 23

mastoid emissary vein from sigmoid sinus to posterior auricular v; posterior meningeal AV

Question 24

mental foramen

Answer 24

mental VAN

Question 25

olfactory foramina

Answer 25

olfactory neurons

Question 26

optic canal

Answer 26

optic nerve and opthalmic artery

Question 27

parietal emissary foramen*

Answer 27

parietal emissary veins from superior sagittal sinus to veins of scalp

Question 28

piriform aperture

Answer 28

air and mucus; cartilage of nasal septum

Question 29

posterior ethmoidal foramen

Answer 29

posterior ethmoidal VAN

Question 30

stylomastoid foramen

Answer 30

facial nerve

Question 31

superior orbital fissure

Answer 31

opthalmic NV; oculomotor, trochlear, and abducens N; postganglionic sympathetic fibers from internal carotid plexus

Question 32

supraorbital foramen

Answer 32

supraorbital VAN

Question 33

zygomaticofacial foramen

Answer 33

zygomaticofacial VAN

Question 34

zygomaticotemporal foramen

Answer 34

zygotmaticotemporal VAN