Lecture 8 - structures passing through opening in the crania floor v2

Question 1

Cribriform plate of ethmoid

Answer 1

Olfactory nerves

Question 2

Optic foramen (3)

Answer 2

Optic nerve, ophthalmic artery, meninges

Question 3

Superior orbital fissure(5)

Answer 3

Oculomotor, trochlear, and abducens nerves; ophthalmic division of trigeminal nerve; superior ophthalmic vein

Question 4

Foramen rotundum

Answer 4

Maxillary division of trigeminal nerve, small artery and vein

Question 5

Foramen ovale

Answer 5

Mandibular division of trigeminal nerve, vein

Question 6

Foramen lacerum

Answer 6

Internal carotid artery, sympathetic plexus

Question 7

Foramen spinosum

Answer 7

Middle meningeal artery and vein

Question 8

internal acoustic meatus

Answer 8

Facial and vestibulocochlear nerves, internal auditory artery

Question 9

Jugular foramen

Answer 9

Glossopharyngeal, vagus, and spinal accessory nerves; sigmoid sinus

Question 10

Hypoglossal canal

Answer 10

Hypoglossal nerve

Question 11

Foramen magnum

Answer 11

Medulla and meninges, spinal accessory nerve. vertebral arteries, anterior and posterior spinal arteries