Cranial Foramina

Question 1

nasal emissary vein

Answer 1

foramen cecum

Question 2

axons of olfactory cells in olfactory epithelium that form olfactory nerves

Answer 2

cribriform foramina in cribriform plate

Question 3

anterior and posterior ethmoidal vessels and nerves

Answer 3

anterior and posterior ethmoidal foramina

Question 4

optic nerve and ophthalmic arteries

Answer 4

optic canal

Question 5

ophthalmic veins and nerve, CN III, IV, and VI and sympathetic fibers

Answer 5

superior orbital fissure

Question 6

maxillary nerve

Answer 6

foramen rotundum

Question 7

mandibular nerve and accessory meningeal artery

Answer 7

foramen ovale

Question 8

middle meningeal artery and vein and meningeal branch of CN V3

Answer 8

foramen spinosum

Question 9

deep petrosal nerve and petrosal branch of middle meningeal artery

Answer 9

foramen lacerum

Question 10

greater petrosal nerve and petrosal branch of middle meningeal artery

Answer 10

groove or hiatus of greater petrosal nerve

Question 11

medulla and meninges, vertebral arteries, CN XI, dural veins, anterior and posterior spinal arteries

Answer 11

foramen magnum

Question 12

CN IX, X, and XI, superior bulb of internal jugular vein, inferior petrosal and sigmoid sinuses, meningeal branches of ascending pharyngeal and occipital arteries

Answer 12

jugular foramen

Question 13

hypoglossal nerve (CN XII)

Answer 13

hypoglossal canal

Question 14

emissary vein that passes from sigmoid sinus to vertebral veins in neck

Answer 14

condylar canal

Question 15

mastoid emissary vein from sigmoid sinus and meningeal branch of occipital artery

Answer 15

mastoid foramen

Question 16

part of anterior cranial fossa

Answer 16

foramen cecum, cribriform foramina, anterior and posterior ethmoidal foramina

Question 17

part of middle cranial fossa

Answer 17

optic canals, superior orbital fissure, foramen rotundum, foramen ovale, foramen spinosum, foramen lacerum, groove or hiatus of greater petrosal nerve

Question 18

part of posterior cranial fossa

Answer 18

foramen magnum, jugular foramen, hypoglossal canal, condylar canal, mastoid foramen