Principal skull foramina and their contents

Question 1

supra orbital foramen

Answer 1

supra orbital nerve and vessels

Question 2

infra orbital foramen

Answer 2

infra-orbital nerve and vessels

Question 3

mental foramen

Answer 3

mental nerve and vessels

Question 4

mandibular foramen

Answer 4

inferior alveolar nerve and vessels

Question 5

optic canal

Answer 5

optic nerve

opthalmic artery

Question 6

superior orbital fissure

Answer 6

opthalimic nerve and veins

oculomotor, trochlear and abducens nerves

Question 7

inferior orbital fissure

Answer 7

maxillary nerve

Question 8

sphenopalatine foramen

Answer 8

spehnopaltine artery

nasal branches of pterygopalatine ganglion

Question 9

foramen rotundum

Answer 9

maxillary nerve

Question 10

foramen ovale

Answer 10

mandibular and lesser petrosal nerves

Question 11

foramen spinosum

Answer 11

middle meningeal vessels

Question 12

foramen lacerum

Answer 12

internal carotid artery (enterhing from behind and emerging from above)

greater petrosal nerve (entering from behind and leaving anteriorly as the nerve of the pterygoid canal)

Question 13

cartoid canal

Answer 13

internal cartoid artery adn nerve

Question 14

jugular foramen

Answer 14

inferior petrosal sinus

glossopharyngeal, vagus and accessory nerves

internal jugular vein (emerging below)

Question 15

internal acoustic meatus

Answer 15

facial and vestibulocochlear nerves

labyrinthine artery

Question 16

hypoglossal canal

Answer 16

hypoglossal nerve

Question 17

stylomastoid foramen

Answer 17

facial nerve

Question 18

foramen magnum

Answer 18

medulla oblongata and meninges

vertebral and anterior and posterior spinal arteries

accessory nerves (spinal parts)