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SP17: Anatomy Test 2 > Pterygopalatine Fossa > Flashcards

Pterygopalatine Fossa Flashcards

1
Q

T/F: The infratemporal fossa is lateral to the pterygopalatine fossa.

A

TRUE

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2
Q

How many openings are associated with the pteygopalatine fossa?

A

7

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3
Q

What cranial nerve is associated with the pterygopalatine ganglion?

A

CN VII

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4
Q

What type of nerve fibers make up the pterygopalatine ganglion?

A

Sympathetic and parasympathetic.

*Only p-symp synapse here

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5
Q

What is the only opening on the lateral wall of the pt. fossa?

A

Pterygomaxillary fissure

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6
Q

What major artery passes through the pterygomaxillary fissure?

A

Maxillary artery

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7
Q

What opening is found in the medial wall of the pt. fossa?

A

Sphenopalatine foramen

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8
Q

What two bones form the sphenopalatine foramen?

A

Sphenoid bone and perpendicular plate of palatine bone

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9
Q

What artery passes through the sphenopalatine canal?

A

Sphenopalatine artery (from maxillary a.)

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10
Q

What are the terminal branches of the sphenopalatine artery?

A
  1. Posterior lateral nasal arteries

2. Posterior septal branches

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11
Q

What nerves go through the sphenopalatine foramen?

A
  1. Nasopalatine nerve (V2)

2. Post. lateral nasal nerves (V2)

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12
Q

What opening is found in the posteriosuperior wall of the pt. fossa?

A

Foramen rotundum

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13
Q

What goes through the foramen rotundum?

A

Maxillary nerve (V2)

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14
Q

What opening is found in the anterosuperior wall of the pt. fossa?

A

Inferior orbital fissure

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15
Q

What nerves pass through the inferior orbital fissure?

A

Infraorbital and zygomatic nerves (V2)

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16
Q

Describe the path of the infraorbital nerve from the pt. fossa?

A

inferior orbital fissure -> infraorbital foramen -> general sensory to middle face

17
Q

What are two branches of the zygomatic nerves after exiting inferior orbital fissure?

A
  1. Zygomaticotemporal nerve

2. Zygomaticofacial nerve

18
Q

What are the two openings on the posterior wall of the pt. fossa?

A
  1. pterygoid canal

2. pharyngeal canal

19
Q

What two foramen does the pterygoid canal connect?

A

Foramen lacerum and sphenopalatine foramen

20
Q

What nerve does the pterygoid canal transmit?

A

Vidian nerve of pterygoid canal

21
Q

What artery transmits through the pterygoid canal?

A

Pterygoid branch of maxillary artery

22
Q

What nerve does the pharyngeal canal transmit?

A

Pharyngeal nerve (V2)

23
Q

What artery does the pharyngeal canal transmit?

A

Pharyngeal branch of maxillary artery

24
Q

What is the opening of the inferior wall of the pt. fossa?

A

Palatine canal

25
Q

What nerves combine to make the nerve of ptergoid canal posterior to canal?

A

Greater petrosal and deep petrosal nerves

26
Q

What nerves does the palatine canal transmit?

A

Greater and lesser palatine nerves (V2)

27
Q

What part of the palate does the greater palatine nerve supply?

A

Hard palate

28
Q

What part of the palate does the lesser palatine nerve supply?

A

Soft palate

29
Q

What artery is transmitted through the palatine canal?

A

Descending palatine artery: splits to greater and lesser palatine arteries

30
Q

What small nerves connect V2 to the pterygopalatine ganglion?

A

Pterygopalatine nerves

31
Q

After entering the pt. fossa through foramen rotundum, what are the branches of the V2?

A
  1. PSA
  2. Zygomatic nerve
  3. Palatine nerves (via pt ganglion)
  4. Post. lateral nasal branches (via pt ganglion)
  5. Becomes infra-orbital nerve
32
Q

What fibers does the deep petrosal nerve contribute to the vidian nerve?

A

Postganglionic sympathetic

33
Q

What fibers does the greater petrosal nerve contribute to the vidian nerve?

A

Preganglionic parasympathetic from CN VII

34
Q

What do the fibers from the vidian nerve ultimately supply?

A

Lacrimal, Nasal, and Palatal glands

SP17: Anatomy Test 2 (13 decks)

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