Gross Anatomy - Cranial Foramina

Question 1

Foramen cecum is formed by what two bones?

Answer 1

• Frontal

- Ethmoid

Question 2

Contents of Foramen cecum?

Answer 2

Emissary vein

Question 3

Greater palatine foramen is formed by what bone?

Answer 3

Palatine

Question 4

Contents of Greater palatine foramen?

Answer 4

Greater palatine N.A.V.

Question 5

Contents of Lesser palatine foramen?

Answer 5

Lesser palatine N.A.V.

Question 6

Lesser palatine foramen is formed by what bone?

Answer 6

Palatine

Question 7

Incisive canal is formed by what bone?

Answer 7

Maxilla

Question 8

Contents of Incisive canal?

Answer 8

Nasopalatine nerve

Question 9

Contents of Supraorbital foramen?

Answer 9

Supraorbital N.A.V.

Question 10

Supraorbital foramen is formed by what bone?

Answer 10

Frontal

Question 11

Infraorbital foramen is formed by what two bones?

Answer 11

• Sphenoid

- Maxilla

Question 12

Contents of infraorbital foramen?

Answer 12

Infraorbital nerve (V2) [N.A.V]

Question 13

Contents of optic canal?

Answer 13

• Optic nerve

- Ophthalmic artery

Question 14

Optic canal is formed by what bone?

Answer 14

Sphenoid

Question 15

Superior orbital fissure is formed what by bone?

Answer 15

• Sphenoid

[specifically - between the greater + lesser wings]

Question 16

Contents of superior orbital fissure?

Answer 16

• Oculomotor n. (CN3)
• Trochlear n. (CN4)
• Trigeminal n. (V1 - lacrimal, frontal, and nasociliary n.n)
• Superior ophthalmic vein

Question 17

Contents of inferior orbital fissure?

Answer 17

• V2 [specifically - infraorbital n.]
• Infraorbital artery, vein
• Ascending branches of sphenopalatine ganglion

Question 18

Inferior orbital fissure leads to what foramen?

Answer 18

Infraorbital foramen

Question 19

Inferior orbital fissure is made of what two bones?

Answer 19

• Sphenoid

- Maxilla

Question 20

Foramen rotundum is made of what bone?

Answer 20

Sphenoid

Question 21

Foramen ovale is made of what bone?

Answer 21

Sphenoid

Question 22

Foramen spinosum is made of what bone?

Answer 22

Sphenoid

Question 23

Petrotympanic fissure is made of what bone?

Answer 23

Temporal

Question 24

Foramen magnum is made of what bone?

Answer 24

Occipital

Question 25

Mandibular foramen is made of what bone?

Answer 25

Mandible

Question 26

Mental foramen is made of what bone?

Answer 26

Mandible

Question 27

Stylomastoid foramen is made of what bone?

Answer 27

Temporal

Question 28

Internal acoustic meatus is made of what bone?

Answer 28

- Temporal | [specifically - the petrous portion]

Question 29

Foramen lacerum is made of what two bones?

Answer 29

- Temporal | - Sphenoid

Question 30

Jugular foramen is made of what two bones?

Answer 30

- Temporal | - Occipital

Question 31

Contents of foramen rotundum?

Answer 31

V2

Question 32

Contents of foramen ovale?

Answer 32

- V3 - Parasympathetic fibers from CNIX via lesser petrosal n - Accessory meningeal artery

Question 33

Contents of foramen spinosum?

Answer 33

Middle meningeal artery and vein

Question 34

Contents of petrotympanic fissure?

Answer 34

- Chorda tympani | - Anterior tympanic artery

Question 35

Contents of foramen lacerum?

Answer 35

- Greater petrosal n - Deep petrosal n - Parasympathetic fibers from CNVII via nervus intermedius

Question 36

Contents of Internal acoustic meatus?

Answer 36

CNVII and CNVIII

Question 37

Contents of stylomastoid foramen?

Answer 37

Facial n. (CNVII)

Question 38

Contents of jugular foramen?

Answer 38

- Internal jugular vein - Glossopharyngeal (CNIX) - Vagus (CNX) - Spinal accessory n.n (CNXI)

Question 39

Contents of foramen magnum?

Answer 39

- Medulla oblongata/spinal cord - Vertebral arteries - Spinal accessory n.

Question 40

Contents of mandibular foramen?

Answer 40

Inferior alveolar N.A.V.

Question 41

Contents of mental foramen?

Answer 41

Mental N.A.V.