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Anatomy > The Pterygopalatine Fossa > Flashcards

The Pterygopalatine Fossa Flashcards

1
Q

What is the pterygopalatine fossa?

A

Bilateral, cone-shaped depression

Extending deep from infratemporal fossa to nasal cavity, via sphenopalatine foramen

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2
Q

Between which bones is the pterygopalatine fossa located?

A

Maxilla
Sphenoid bone
Palatine bone

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3
Q

What is the anterior border of the pterygopalatine fossa?

A

Posterior wall of maxillary sinus

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4
Q

What is the posterior border of the pterygopalatine fossa?

A

Pterygoid process of sphenoid bone

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5
Q

What is the inferior border of the pterygopalatine fossa?

A

Palatine bone

Palatine canals

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6
Q

What is the superior border of the pterygopalatine fossa?

A

Inferior orbital fissure of eye

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7
Q

What is the medial border of the pterygopalatine fossa?

A

Perpendicular plate of palatine bone

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8
Q

What is the lateral border of the pterygopalatine fossa?

A

Pterygomaxillary fissure

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9
Q

What is the course of the maxillary nerve through the pterygopalatine fossa?

A

Enters via foramen rotundum

Exits via infraorbital fissure

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10
Q

How does the maxillary nerve communicate with the pterygopalatine ganglion?

A

Via 2 pterygopalatine nerves

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11
Q

What suspends the pterygopalatine ganglion within the pterygopalatine fossa?

A

Pterygopalatine nerves

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12
Q

Where in the pterygopalatine fossa is the pterygopalatine ganglion?

A

Deep, near sphenopalatine foramen

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13
Q

What predominantly innervates the pterygopalatine ganglion?

A

Greater petrosal branch of CN VII

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14
Q

Via the branches of the maxillary nerve, what do the postsynaptic fibres of the pterygopalatine ganglion do?

A 
Secretomotor in function
Parasympathetic innervation to
- Lacrimal gland
- Mucosal glands of
   - Oral cavity
   - Nose
   - Pharynx
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15
Q

Of what is the maxillary artery a branch?

A

Terminal branch of external carotid artery

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16
Q

What is the course of the maxillary artery through the pterygopalatine fossa?

A

Terminal portion of maxillary artery within it

Separates into several branches

17
Q

What are the seven foramina in the pterygopalatine fossa?

A 
Pterygomaxillary fissure
Foramen rotundum
Pterygoid canal
Pharyngeal canal
Inferior orbital fissure
Greater palatine canal
Sphenopalatine foramen
18
Q

What does the pterygomaxillary fissure connect to the pterygopalatine fossa

A

Infratemporal fossa

19
Q

What does the pterygomaxillary fissure transmit?

A

Posterior superior alveolar nerve

Terminal part of maxillary artery

20
Q

What does the foramen rotundum connect to the pterygopalatine fossa?

A

Middle cranial fossa

21
Q

What does the pterygoid canal connect to the pterygopalatine fossa?

A

Middle cranial fossa via medial pterygoid plate

22
Q

What does the pterygoid canal transmit?

A

Nerve, artery, and vein of pterygoid canal

Anatomy (30 decks)

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