Head-Foramen, fossa, etc

Question 1

Supraorbital foramen

Answer 1

supraorbital nerve (cn v1-opthalmic) and vessels

Question 2

infraorbital foramen

Answer 2

infraorbital nerve (cn v2-maxillary) and vessels

Question 3

mental foramen

Answer 3

mental nerve (cn v3-mandibular) and vessels

Question 4

foramen for emissary vein

Answer 4

emissary veins -parietal bones

Question 5

mastoid foramen

Answer 5

emissary vein, meningeal branch of occipital artery

Question 6

foramen magnum

Answer 6

medulla oblongata, spinal cord, vertebral arteries/nerve plexuses, anterior/posterior spinal arteries, accessory N roots

Question 7

Jugular foramen

Answer 7

internal jugular vein, glossopharyngeal n, vagus n, accessory N

Question 8

stylomastoid foramen

Answer 8

facial N, stylomastoid a.

Question 9

Foramen Ovale

Answer 9

mandibular n (cn v3), lesser petrosal n (cnix)

Question 10

foramen spinosum

Answer 10

middle meningeal a

Question 11

carotid canal

Answer 11

internal carotid a and nerve plexus

Question 12

hypoglossal canal

Answer 12

hypoglossal n

Question 13

foramen rotundum

Answer 13

maxillary n (cn v2)

Question 14

internal auditory meatus

Answer 14

facial n, vestibulocochlear n

Question 15

muscles of infratemporal fossa

Answer 15

lower temporalis and lateral/medial pterygoid muscles

Question 16

vessels of infratemporal fossa

Answer 16

external carotid branches into superficial temporal and maxillary. Includes maxillary branches: inf/sup alveolar, buccal, deep temporal, middle meningeal

Question 17

veins of infratemporal fossa

Answer 17

pterygoid venous plexus

Question 18

nerves of infratemporal fossa

Answer 18

Mandibular nerve and branches: auriculotemporal n, deep temporal, inf alveolar, lingual, buccal, nerve to mylohyoid, chorda tympani, otic ganglion (post gang psns to parotid,

Question 19

How does the infratemporal fossa communicate with the temporal fossa?

Answer 19

via passage through zygomatic arch

Question 20

Hows does the pterygopalatine fossa communicate with the infratemporal fossa and orbit?

Answer 20

directly via infraorbital fissure

Question 21

Superior orbital fissure

Answer 21

CN3, CN4, Opthalmic N (cn v1) CN 6