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Sp24 - Head/Neck Anatomy > (E4) 1 - Pterygopalatine Fossa and V2 Distribution > Flashcards

(E4) 1 - Pterygopalatine Fossa and V2 Distribution Flashcards

Kling

1
Q

Pyramid-shaped (inverted tear drop) fossa on the lateral aspect of the skull

A

Pterygopalatine Fossa

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2
Q

Function of the Pterygopalatine Fossa

A
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3
Q

Contents of the Pterygopalatine Fossa

A
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4
Q

Describe the Anterior Portion of the PPF

A
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5
Q

Describe the Posterior Portion of the PPF

A
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6
Q

Boundaries of the PPF: Anterior

A
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7
Q

Boundaries of the PPF: Posterior

A
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8
Q

Boundaries of the PPF: Medial

A
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9
Q

Boundaries of the PPF: Lateral

A
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10
Q

Boundaries of the PPF: Superior

A
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11
Q

Boundaries of the PPF: Inferior

A
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12
Q

PPF: All walls have at least one opening except the ______ wall

A

anterior

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13
Q

PPF: Name the 7 foramina and fissures that provide apertures through which structures enter and leave.

A
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14
Q

PPF Gatweways: Anterior Wall - Opening and Relationship

A
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15
Q

PPF Gatweways: Lateral Wall - Opening and Relationship

A
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16
Q

PPF Gatweways: Medial Wall - Opening and Relationship

A
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17
Q

PPF Gatweways: Superior Wall - Opening and Relationship

A
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18
Q

PPF Gatweways: Inferior Wall - Opening and Relationship

A
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19
Q

PPF Gatweways: Posterior Wall - Opening and Relationship

A
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20
Q

Maxillary sinus is located ____ to PPF

A

directly anterior

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21
Q

_______________ allows communication
between PPF and infratemporal fossa

A

Pterygomaxillary fissure

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22
Q

Anterosuperior communication with the floor of the orbit is through the _______

A

inferior orbital fissure

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23
Q

Posterior communication with the middle cranial fossa is through ____ and _____

A

Foramen Rotundum and Pterygoid Canal

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24
Q

Posterior opening of the pterygoid canal is deep to _______ (covered with cartilage)

A

Foramen Lacerum

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25
Q

What type of nerve is the Maxillary nerve V2?

A

Pure sensory - GSA

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26
Q

V2 Nerve: Exits middle cranial fossa and enter the PPF via ______

A

Foramen Rotundum

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27
Q

List the 4 direct branches of V2 within the PPF

A
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28
Q

True or False: Additional sensory branches pass through the pterygopalatine ganglion without synapsing.

A

True

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29
Q

Posterior Superior Alveolar Nerve: Exits PPF through the _____ to enter the infratemporal fossa

A

Pterygomaxillary Fissure

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30
Q

Posterior Superior Alveolar Nerve: In the infratemporal fossa, it passes on the _____ along the maxillary tuberosity

A

Posterior surface of the maxilla

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31
Q

What does the Posterior Superior Alveolar Nerve give rise to?

A
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32
Q

What does the Posterior Superior Alveolar Nerve supply and what’s the one exception?

A
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33
Q

Zygomatic Nerve: Exits PPF through ______ to enter the orbit

A

the inferior orbital fissure

34
Q

Zygomatic Nerve: Passes on the lateral wall of the orbit and branches into …

35
Q

Zygomatic Nerve: A communicating branch from it joins the _____ from the ophthalmic division of the trigeminal to carry _______ to the lacrimal gland.

A
  • Lacrimal nerve (V1)
  • Autonomics
36
Q

Infraorbital Nerve: Exits PPF through the ______ to enter the orbit

A

inferior orbital fissure

37
Q

Infraorbital Nerve: Passes anterior through the _____, _______, and exits onto the face via the _______

A
  • infraorbital groove
  • infraorbital canal
  • infraorbital foramen
38
Q

Infraorbital Nerve: Within the infraorbital canal, it gives rise to _____ and _______

A
  • Anterior superior alveolar nerve
  • Middle superior alveolar nerve
39
Q

Anterior superior alveolar nerve supplies _____

40
Q

Middle superior alveolar nerve supplies _____

A

When this nerve is not present the Anterior superior alveolar nerve supplies the areas.

41
Q

Where do you line up your needle for an Anterior superior alveolar nerve block?

A

Infraorbital foramen - 1st maxillary premolar

42
Q

Infraorbital nerve: Exits skull through ______ inferior to the orbital margin and between what 2 muscles?

A
  • infraorbital foramen
  • levator labii superioris muscle
  • levator anguli oris muscle
43
Q

Branches of the Infraorbital Nerve as it exits the skull (and what they supply)

44
Q

What do the ganglionic branches of V2 connect?

45
Q

Describe the Ganglionic Branches of V2

46
Q

Branches off the Pterygopalatine Ganglion

47
Q

Pterygopalatine ganglion is a collection of _____

A

postganglionic cell bodies - for parasympathetics

48
Q

The ganglionic branches are of the maxillary division of the trigeminal nerve connect to the _____

A

pterygopalatine ganglion

49
Q

What is another name for the nerve of the pterygoid canal?

A

Vidian nerve

50
Q

3 sets of nerve fibers travel through the pterygopalatine ganglion. Name and describe them

A

All branches arising from the pterygopalatine ganglion carry these 3 sets of fibers to the areas where they terminate.

51
Q

Autonomics to PF: Parasympathetics - Where is it coming from?

A

Facial Nerve

52
Q

Autonomics to PF: Parasympathetics - Where do the preganglionic cell bodies arise from?

A

Superior salivatory nucleus

53
Q

Autonomics to PF: Parasympathetics - What is the branch off the facial nerve?

A

Greater petrosal nerve

54
Q

Autonomics to PF: Parasympathetics - Describe the nerve location

55
Q

Autonomics to PF: Sympathetics - Describe the preganglionics

56
Q

Autonomics to PF: Sympathetics - Describe the postganglionics

57
Q

Autonomics to PF: Sympathetics - Describe the deep petrosal nerve

58
Q

The greater petrosal nerve and the deep petrosal nerve meet up and form what nerve?

A

Vidian Nerve

59
Q

Where does the greater petrosal nerve branch off of the facial nerve?

A

Geniculate ganglion

60
Q

Greater petrosal nerve and deep petrosal nerve join to form the nerve of the pterygoid canal (Vidian nerve) at the ________

A

foramen lacerum

61
Q

Nerve of pterygoid canal traverses through the
cartilage covering foramen lacerum to enter the
_________. Then joins ganglion in ______

A
  • pterygoid canal
    -PPF
62
Q

PF: Preganglionic parasympathetics synapse and postganglionic fibers go where?

63
Q

____________ pass through the ganglion (no synapse) and are distributed with branches of the maxillary artery

A

Postganglionic sympathetics

64
Q

All branches arising from the pterygopalatine ganglion carry these 3 sets of fibers to the areas where they terminate. (list them)

65
Q

Nasopalatine N.: Passes through the _______ to enter the nasal cavity

A

Sphenopalatine foramen

66
Q

Nasopalatine N.: Passes along the superior portion of the nasal cavity to the nasal
septum; then travels anteroinferiorly to the _____

A

incisive canal

67
Q

Nasopalatine N.: Exits the incisive foramen on the hard palate and supplies _____

68
Q

Posterior Superior Nasal N.: Passes through the _____ to enter the nasal cavity where it divides into _____ and _______

A
  • sphenopalatine foramen
  • lateral posterior superior
  • medial posterior superior nasal
69
Q

What does the lateral posterior superior nerve supply?

A

Lateral wall of the nasal cavity

70
Q

What does the medial posterior superior nerve supply?

A

Posterosuperior portion of the nasal septum

71
Q

Greater Palatine N.: What does it pass through, and what does it supply?

72
Q

Lesser Palatine N.: What does it pass through, and what does it supply?

73
Q

Describe the Posterior Inferior Nasal Nerves

A

Supplies the lateral part of the nasal cavity

74
Q

Image: Greater Palatine Nerve Block

A
  • typically medial to 3rd molar
  • posteromedial to 2nd molar
75
Q

Pharyngeal (Palatovaginal N.): Passes through the _____ to enter and supply the _____.

A
  • palatovaginal (pharyngeal) canal
  • nasopharynx
76
Q

What branches of the Maxillary Artery are a part of the Pterygopalatine fossa?

77
Q

Describe Sinusitis

78
Q

The most common location for sinusitis is the ________

A

Maxillary sinus

79
Q

Nerve lesions: Describe Central and Peripheral Lesions

80
Q

What is trigeminal neuralgia?

Sp24 - Head/Neck Anatomy (21 decks)

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