Review of Foramens

Question 1

What foramina is in the anterior cranial fossa, and what is its associated structures?

Answer 1

Foramina of the cribform plate

CN I

Question 2

Optic Canal, Foramina and structures?

Answer 2

• CN II
• opthalmic artery
• middle cranial fossa

Question 3

foramen rotundum, Foramina and structures?

Answer 3

-maxillary division of CN V

Question 4

foramen spinosum. Foramina, and structures?

Answer 4

middle meningeal artery

-middle cranial fossa

Question 5

foramen lacerum. Foramina, and structures?

Answer 5

no structures. Middle fossa

Question 6

carotid canal. Foramina and structures?

Answer 6

• internal carotid artery
• post ganglionic sympathetic fibers
• middle cranial fossa

Question 7

hiatus of the greater petrosal nerve. Foramina and structure?

Answer 7

greater petrosal nerve.

middle cranial fossa

Question 8

hiatus of the lesser petrosal nerve. Foramina and structures

Answer 8

lesser petrosal nerve

middle cranial fossa

Question 9

internal auditory meatus. Fossa and structure

Answer 9

CN VII & CN VIII

• internal auditory artery
• posterior cranial fossa

Question 10

jugular foramen. Fossa and structures?

Answer 10

• CN IX, CN X, CN XI
• internal jugular vein
• posterior cranial fossa

Question 11

hypoglossal canal. Fossa and structures?

Answer 11

CN XII

-posterior cranial fossa

Question 12

foramen magnum. Fossa and structures?

Answer 12

• junction of medulla/spinal cord
• vertebral artery and vein
• anterior spinal artery and vein
• posterior spinal artery and vein
• posterior cranial fossa

Question 13

supraorbital foramen. Skull part?

Answer 13

• supraorbital nerve
• supraorbital artery and vein
• exterior

Question 14

infraorbital foramen. Skull part?

Answer 14

• infraorbital nerve
• infraorbital artery and vein
• exterior

Question 15

mental foramen. Skull part?

Answer 15

• mental nerve
• mental artery and vein
• exterior part of skull

Question 16

zygomatico-orbital foramen. Skull part?

Answer 16

zygomatic nerve

-exterior part of skull

Question 17

zygomaticofacial foramen. skull part?

Answer 17

zygomaticofacial nerve

-exterior part of the skull

Question 18

zygomaticotemporal foramen. Skull part?

Answer 18

zygomaticotemporal nerve.

-exterior part of skull

Question 19

mandibular foramen. Skull part?

Answer 19

• inferior alveolar artery and vein
• inferior alveolar nerve
• exterior part of skull

Question 20

inferior orbital fissure. Skull part?

Answer 20

• zygomatic nerve
• infraorbital nerve
• infraorbital artery and vein
• inferior ophthalmic vein
• exterior part of the skull

Question 21

Anterior ethmoidal foramen. Skull part?

Answer 21

• anterior ethmoidal nerve
• anterior ethmoidal artery and vein
• exterior part of the skull

Question 22

posterior ethmoidal foramen. Skull part?

Answer 22

• posterior ethmoidal nerve
• posterior ethmoidal artery and vein
• exterior part of the skull

Question 23

ptergomaxillary fissure. Skull part?

Answer 23

• maxillary artery

- exterior part of skull

Question 24

petrotympanic fissure

Answer 24

chora tympani nerve

Question 25

greater palatine foramen

Answer 25

- greater palatine nerve - greater palatine artery - greater palatine vein

Question 26

lesser palatine foramen

Answer 26

- lesser palatine nerve - lesser palatine artery - lesser palatine vein

Question 27

pterygoid canal

Answer 27

greater petrosal nerve

Question 28

stylomastoid foramen

Answer 28

CN VII

Question 29

sphenopalatine foramen

Answer 29

- nasal branches of maxillary div. CN V | - nasal branches of maxillary artery

Question 30

palatine canal

Answer 30

- greater palatine nerve - lesser palatine nerve - greater palatine artery and vein - lesser palatine artery and vein

Question 31

Foramen ovale

Answer 31

- mandibular div. CN V - accessory meningeal artery - lesser petrosal nerve - emissary valne connecting cavernous sinus to pterygoid plexus