Nervous Part 3

Question 1

Foramen in the middle cranial fossa

Answer 1

Optic canal
Superior orbital fissure
Foramen rotundum
Foramen ovale

Question 2

Optic canal

Answer 2

Optic nerve
ophthalmic artery
Central artery/vein of retina
(Lesser wing of sphenoid)

Question 3

Superior orbital fissure

Answer 3

CN III, IV, VI
(Ophthalmic nerve, V1)
Ophthalmic VEIN
Lacrimal, frontal, and nasociliary nerves

Question 4

Foramen rotundum

Answer 4

Maxillary nerve (V2)

Question 5

Foramen ovale

Answer 5

Mandibular nerve (V3

Question 6

Foramen Spinosum

Answer 6

Middle Meningeal artery

Question 7

Foramen lacerum

Answer 7

Greater petrosal nerve
(Traversed by ICA)
(Between petrous part of temporal and sphenoid)

Question 8

Foramen in the posterior cranial fossa

Answer 8

Jugular foramen
Hypoglossal canal
Internal acoustic meatus
Foramen magnum

Question 9

Internal acoustic meatus

Answer 9

CN 7,8
Labyrinthine artery
Petrous part of temporal

Question 10

Jugular foramen

Answer 10

Beetween petrou part of temporal and occipital
Inferior petrosal sinus
CN IX,X,XI (accessory nerve, cranial root)
Sigmoid sinus
Posterior meningeal artery

Question 11

Hypoglossal canal

Answer 11

Occipital bone

Hypoglossal nerve

Question 12

Foramen magnum

Answer 12

Occipital bone
Only unpaired openign
CN XI, spinal root
Medulla oblongata
Meninges
Spinal cord
Vertebral arteries
Venous plexus of vertebral canal
Anterior and posterior spinal arteries

Question 13

Supraorbital foramen

Answer 13

Supraorbital nerve
Supraorbital artery
Supraorbital vein
Branch of the frontal nerve (ophthalmic division of trigeminal nerve)

Question 14

Infraorbital foramen

Answer 14

Infraorbital branch of the maxillary nerve (V2)
(Maxillary nerve (V2) and its infraorbital and zygomatic branches;
Inferior ophthalmic vein
Sympathetic nerves)

Question 15

Summarize cranial fossa

Answer 15

ANTERIOR CRANIAL FOSSA
-cn 1
-lesser wing of shenoid
MIDDLE CRANIAL FOSSA
-cn 2-6
-petrou part of temporal bone (?)
POSTERIOR CRANIAL FOSSA
-CN 7-12