foramina and canals of cranial base inferior view Netter 12

Question 1

incisive foassa

Answer 1

nasopalatine nerve, sphenopalatine vessels

Question 2

greater palatine foramen

Answer 2

greater palatine nerve and vessels

Question 3

lesser palatine foramen

Answer 3

lesser palatine nerve and vessels

Question 4

foramen lacerum

Answer 4

greater petrosal nerve

Question 5

foramen ovale

Answer 5

lesser petrosal nerve, mandibular nerve V3, accessory meningeal artery

Question 6

foramen spinosum

Answer 6

middle meningeal vessels, meningeal branch of mandibular nerve (V3)

Question 7

carotid canal

Answer 7

internal carotid artery, carotid autonomic plexus

Question 8

petrotympanic fissure

Answer 8

chorda tympani of facial nerve (CN VII)

Question 9

tympanic canaliculus

Answer 9

tympanic branch of glossopharyngeal nerve (CN IX)

Question 10

mastoid canaliculus

Answer 10

auricular branch of vagus nerve (CN x)

Question 11

Stylomastoid foramen

Answer 11

facial nerve (CN VII)

Question 12

Jugular fossa

Answer 12

glossopharyngeal (CN IX), Vagus (CN X), Accessory (CN XI), superior bulb, internal jugular vein

Question 13

mastoid foramen

Answer 13

mastoid emissary vein, posterior meningeal artery

Question 14

hypoglossal canal

Answer 14

hypoglossal (CN XII)

Question 15

foramen magnum

Answer 15

medulla, vertebral arteries and venous plexus, spinal roots of accessory nerves (CN XI)