Holes in the Pterygopalatine Fossa, Orbit

Question 1

Foramen Rotundum

• Communicating Spaces
• What passes through?

Answer 1

Communicating Spaces:

• Pterygopalatine Fossa (post wall)
• Middle Cranial Fossa

What:
- Maxillary n. (V2)

Question 2

Pterygoid Canal

• Communicating Spaces
• What passes through?

Answer 2

Communicating Spaces:

• Pterygopalatine Fossa (post wall)
• Base of Skull Just anterior to foramen lacerum

What:
- Artery and Nerve of Pterygoid Canal

Question 3

Pharyngeal Canal

• Communicating Spaces
• What passes through?

Answer 3

Communicating Spaces:

• Pterygopalatine Fossa (Post. Wall)
• Nasopharynx

What:

• Pharyngeal Branch of Maxillary a.
• Pharyngeal Branch of Maxillary n. (V2)

Question 4

Inferior Orbital Fissure

• Communicating Spaces
• What passes through?

Answer 4

Communicating Spaces:

• Pterygopalatine Fossa
• Orbit

What:
Orbital Branches of V2:
- zygomatic
- infraorbital nn. 
Infraorbital ARTERY

Question 5

Sphenopalatine Foramen

• Communicating Spaces
• What passes through?

Answer 5

Communicating Spaces:

• Pterygopalatine Fossa - Medial wall
• Nasal Cavity

What:

• Sphenopalatine Artery
• Nasopalatine Nerve

Question 6

Greater and Lesser Palatine Foramina

• Communicating Spaces
• What passes through?

Answer 6

Communicating Spaces:

• Pterygopalaine Flossa - Medial wall
• Roof of Oral Cavity

What:
- Greater and lesser palatine nn. and vv.

Question 7

Posterior Superior Alveolar Foramen

• Communicating Spaces
• What passes through?

Answer 7

Communicating Spaces:

• Pterygoplatine Fossa - Anterior wall
• Bony wall of maxillary sinus

What:
- Posterior Superior Alveolar Artery and Nerve into the Superior Dental Arch

****ACTUALLY IS IN THE ANTERIOR WALL OF INFRATEMPORAL FOSSA

Question 8

Optic Canal

• Communicating Spaces
• What passes through?

Answer 8

Communicating Spaces:

• Orbit
• Middle Cranial Fossa

What:

• Optic n. (CN II)
• Opthalmic a.

Question 9

Superior Orbital Fissure

• Communicating Spaces
• What passes through?

Answer 9

Communicating Spaces:

• Orbit
• Middle Cranial Fossa

What:

• Opthalmic n. (CN V1) - Lacrimal, Frontal, Nasociliary branches
• Oculomotor n. (CN III) - Sup. and Inf. branches
• Abducens n. (CN VI)
• Superior Opthalmic Vein

Question 10

Inferior Orbital Fissure

• Communicating Spaces
• What passes through?

Answer 10

Communicating Spaces:

• Orbit
• Pterygopalatine and Infratemporal Fossae

What:

• V2 - Orbital Branches (zygomatic n., infraorbital n.)
• Infraorbital a.

Question 11

Anterior and Posterior Ethmoidal Foramina

• Communicating Spaces
• What passes through?

Answer 11

Communicating Spaces:

• Orbit
• Ethmoid bone

What:
- Anterior and Posterior Ethmoidal nn. and vv.