Foramina of skull and contents

Question 1

Incisive foramen

Answer 1

Nasopalatine nerve (maxillary V/2)
Sphenopalatine artery (maxillary artery)

Question 2

Greater palatine foramen

Answer 2

Greater palatine nerve (maxillary V/2)

Greater palatine artery

Question 3

Lesser palatine foramen

Answer 3

Lesser palatine nerve (maxillary V/2)

Lesser palatine arteries

Question 4

Inferior orbital fissure

Answer 4

Infraorbital artery (maxillary artery)
Infraorbital nerve (maxillary V/2)
Zygomatic nerve (maxillary V/2)
Inferior opthalmic vein

Question 5

Foramen rotundum

Answer 5

Maxillary nerve V/2

Question 6

Foramen ovale

Answer 6

Mandibular nerve

Venous plexus of foramen ovale

Question 7

Foramen spinosum

Answer 7

Meningeal branch (mandibular nerve V/3)
Middle meningeal artery (maxillary artery)

Question 8

Foramen lacerum

Answer 8

Lesser petrosal nerve (glossopharyngeal IX)
Greater petrosal nerve (facial nerve VII)
Deep petrosal nerve (internal carotid plexus)

Question 9

Carotid canal

Answer 9

Internal carotid artery (petrous part)
Internal carotid venous plexus
Internal carotid plexus (sympathetic trunk)

Question 10

Stylomastoid foramen

Answer 10

Facial nerve VII

Question 11

Jugular foramen

Answer 11

Anterior part:
Inferior petrosal sinus
Glossopharyngeal nerve IX

Posterior part:
Posterior meningeal artery (ascending pharyngeal artery)
Sigmoid sinus
Vagus nerve X
Accessory nerve XI

Question 12

Mastoid canaliculis

Answer 12

Auricular part of vagus nerve X

Question 13

Hypoglossal canal

Answer 13

Hypoglossal nerve XII

Venous plexus of hypoglossal nerve

Question 14

Condylar canal

Answer 14

Condylar emissary vein

Question 15

Foramen magnum

Answer 15

Meninges
Internal vertebral venous plexus
Vertebral arteries
Anterior spinal artery
Medulla oblongata / spinal cord
Spinal roots (accessory nerve XI)

Question 16

Cribriform plate

Answer 16

Olfactory nerves I

Anterior ethmoidal artery (opthalmic artery)

Question 17

Optic canal

Answer 17

Optic nerve II
Opthalmic artery (internal carotid artery)
Meninges; sheath of optic nerve

Question 18

Superior orbital fissure

Answer 18

Middle part:
Nasociliary nerve (opthalmic nerve V1)
Oculomotor nerve III
Abducent nerve VI

Lateral part:
Trochlear nerve IV
Orbital branch (medial meningeal artery)
Superior ophthalmic artery

Question 19

Internal acoustic meatus

Answer 19

Facial nerve VII
Vestibulocochlear nerve VIII
Labyrinthine artery + vein