Foramina of Cranial Base

Question 1

What passes through the foramina of cribriform plate?

Answer 1

Olfactory nerve bundles

Question 2

What passes through the optic canal?

Answer 2

Optic nerve, Ophthalmic artery

Question 3

What passes through the superior orbital fissure?

Answer 3

Oculomotor nerve, Trochlear nerve, Abducens nerve, Lacrimal, Frontal and Nasocillary branches of Ophthalmic nerve (V1), Superior ophthalmic vein

Question 4

What passes through foramen rotundum?

Answer 4

Maxillary nerve (V2)

Question 5

What passes through foramen ovale?

Answer 5

Mandibular nerve (V3), Accessory meningeal artery, lesser petrosal nerve (occasionally)

Question 6

What passes through foramen spinosum?

Answer 6

Middle meningeal artery and vein, Meningeal branch of V3.

Question 7

What passes through foramen lacerum?

Answer 7

nothing but Greater petrosal nerve passes through this space

Question 8

What passes through carotid canal?

Answer 8

Internal carotid artery, Internal carotid nerve plexus

Question 9

What passes through internal acoustic meatus?

Answer 9

Facial nerve, Vestibulocochlear nerve, Labyrinthine artery

Question 10

What passes through jugular foramen

Answer 10

Inferior petrosal venous sinus, Internal jugular vein, Glossopharyngeal nerve, Vagus nerve, Spinal accessory nerve, Sigmoid venous sinus, Posterior meningeal artery

Question 11

What passes through hypoglossal canal?

Answer 11

Hypoglossal nerve

Question 12

What passes through foramen magnum?

Answer 12

Medulla oblongata, Meninges, Vertebral arteries, Meningeal branches of vertebral arteries, Spinal roots of Spinal accessory nerves