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Anatomy BLOCK 3 > Pterygopalatine Fossa > Flashcards

Pterygopalatine Fossa Flashcards

1
Q

What is the pterygopalatine fossa

A

Small space that is medial to the infratemporal fossa

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2
Q

Anterior border of the pterygopalatine fossa

A

Posterior surface of the maxilla

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3
Q

Posterior boundary of the pterygopalatine fossa

A

Pterygoid process

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4
Q

Superior border of the boundary of the pterygopalatine fossa

A

Greater wing of sphenoid

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5
Q

Medial border of the pterygopalatine fossa

A

Perpendicular plate of the palatine bone

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6
Q

Lateral wall of the pterygopalatine fossa

A

Pterygomaxillary fissure

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7
Q

Medial wall of the pterygopalatine fossa

A

Sphenopalatine foramen

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8
Q

Anterior wall of the pterygopalatine fossa

A

Inferior orbital fissure

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9
Q

Posterior wall of the pterygopalatine fossa

A

Pterygoid canal

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10
Q

Ceiling of the pterygopalatine fossa

A

Foramen rotundum

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11
Q

Floor of the pterygopalatine fossa

A

No floor, just a passage to the greater and lesser palatine canals

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12
Q

What nerve passes through the pterygopalatine fossa

A

V2 maxillary nerve of trigeminal

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13
Q

The _____nerve passes through the pterygopalatine fossa and the _____hangs from that nerve.

A

V2 maxillary

Pterygopalatine

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14
Q

What kind of ganglion is the pterygopalatine ganglion?

A

Parasympathetic ganglion

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15
Q

What kind of fibers does the pterygopalatine ganglion receive

A

-Sensory- from V2
Preganglionic
-parasympathetic fibers-from the greater petrosal nerve
-postganglionic sympathetic fibers-from the deep petrosal nerve

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16
Q

Where do the sensory fibers that go to the pterygopalatine ganglion come from?

A

V2 maxillary from trigeminal

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17
Q

Where do preganglionic parasympathetic fibers come from?

A

From the greater petrosal nerve

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18
Q

Where do the postganglionic sympathetic fibers to the pterygopalatine ganglion come from?

A

From the deep petrosal nerve

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19
Q

What is the greater petrosal nerve a branch of?

A

Facial VII

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20
Q

What kind of nerves are contained in the greater petrosal nerve?

A

Preganglionic parasympathetic fibers

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21
Q

The greater petrosal nerve joins the ______ to form the ________

A
  • deep petrosal nerve

- the nerve of the pterygoid canal

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22
Q

Fibers of the deep petrosal nerve

A

Postganglionic sympathetic from the superior cervical ganglion

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23
Q

Greater petrosal nerve plus the deep petrosal nerve =

A

Pterygoid canal

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24
Q

What kind of fibers go through the pterygoid canal?

A

Autonomic

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25
Q

Where does the nerve of the pterygoid canal terminate

A

In the pterygopalatine ganglion

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26
Q

What synapses in the pterygopalatine ganglion?

A

Preganglionic parasympathetic

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27
Q

What kind of fibers just pass on through the pterygopalatine ganglion?

A

Postganglionic sympathetic fibers

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28
Q

Parasympathetic ganglion

A
  • ciliary
  • otic
  • submandibular
  • pterygopalatine
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29
Q

What are the branches of the pterygopalatine ganglion

A
  • greater palatine nerve
  • lesser palatine nerve
  • nasopalatine nerve
  • posterolateral branches
  • pharyngeal nerve
30
Q

Where does the maxillary nerve (V2) exit?

A

The middle cranial fossa through the foramen rotundum

31
Q

What kind of fibers does the maxillary )V2) nerve contain?

A

Sensory fibers

32
Q

Where does the maxillary nerve (V2) enter after it passes through the foramen rotundum?

A

The pterygopalatine fossa and travels in the upper part of the fossa

33
Q

After the maxillary V2 nerve travels through the upper part of the fossa where does it enter?

A

Enters the orbit through the inferior orbital

34
Q

Once the maxillary nerve enters the orbit through the inferior orbital fissure, what does it change its name to?

A

Infraorbital nerve

35
Q

Branches of the maxillary (V2) branch of the trigeminal

A
  • intracranial branch
  • ganglionic branches
  • zygomatic nerve
  • zygomaticotemporal nerve
  • posterior superior alveolar nerve
  • middle superior alveolar nerve
  • anterior superior alveolar nerve
36
Q

Intracranial branch of V2 innervated what?

A

Innervates dura mater in the middle cranial fossa

37
Q

Ganglionic branches of the maxillary (V2) nerve connects what with what?

A

Connect V2 with the pterygopalatine ganglion

38
Q

What kind of fibers do the ganglionic branches of the maxillary nerve have?

A

Sensory fibers (plus a few postganglionic parasympathetic fibers)

39
Q

Zygomatic nerve branch of maxillary nerve divides into what?

A

Zygomaticotemporal and zygomaticofacial nerves

40
Q

What does the zygomatic nerve of the maxillary nerve supply?

A

Skin over the temporal region and cheek

41
Q

Zygomaticotemporal nerve branch of the maxillary nerve has branches that contain what

A

Postganglionic parasympathetic fibers destined for the lacrimal gland?

42
Q

What nerve has fibers that are destined for the lacrimal gland?

A

Zygomaticotemporal nerve has branches that contain postganglionic parasympathetic fibers destined for the lacrimal gland

43
Q

Nerve of pterygoid canal has what kind of fibers?

A

Postganglionic sympathetic and preganglionic parasympathetic

44
Q

Posterior superior alveolar nerve branch of V2 innervation

A

Supplies maxillary molar teeth and mucosa of maxillary sinus

45
Q

Middle superior alveolar nerve branch of the V2 innervation

A

Supplies maxillary premolars and mucosa of maxillary sinus

46
Q

Anterior superior alveolar nerve branch of V2 innervation

A

Supplies maxillary incisors and canine teeth and mucosa of maxillary sinus

47
Q

How much fluid can the maxillary sinus hold?

A

15ml of fluid

48
Q

What fossa does the maxillary artery leave?

A

Infratemporal fossa

49
Q

Where does the pterygopalatine (3rd) part of the maxillary artery enter the pterygopalatine fossa?

A

Through the pterygopalatine fissure

50
Q

What do the pterygopalatine part of the maxillary artery branches follow?

A

Those of V2 and the pterygopalatine ganglion

51
Q

Branches of the pterygopalatine part of the maxillary artery

A
  • posterior superior alveolar artery
  • infraorbital artery
  • descending palatine artery
  • pharyngeal artery
  • artery of the pterygoid canal
  • sphenopalatine artery
52
Q

Posterior superior alveolar artery innervates what?

A

Supplies the maxillary molar and premolars teeth, and mucosa of the maxillary sinus

53
Q

What is the posterior superior alveolar artery a branch of?

A

The pterygopalatine part of the maxillary artery

54
Q

Infraorbital artery accompanies what nerve?

A

Infraorbital nerve

55
Q

What is the infraorbital artery a branch of?

A

Pterygopalatine part of the maxillary artery

56
Q

Where does the infraorbital artery emerge at?

A

On the face and gives off some branches

57
Q

What are the branches that the infraorbital artery give off when it emerges on the face?

A
  • anterior superior alveolar artery

- terminal branches

58
Q

Anterior superior alveolar arter supplies what?

A

Maxillary incisor and canine teeth, and mucosa of maxillary sinus

59
Q

Termina branches of the infraorbital artery supply what?

A

Supply structures on the face

60
Q

Descending palatine artery is a branch of what?

A

Pterygopalatine part of the maxillary artery

61
Q

What does the descending palatine artery divide into?

A

The greater and lesser palatine arteries to hard and soft palates

62
Q

Pharyngeal artery is a branch of what?

A

Ther pterygopalatine part of the maxillary artery

63
Q

Where does the pharyngeal artery come from?

A

Pterygopalatine part of the maxillary artery

64
Q

Where does the pharyngeal artery pass through?

A

The palatovaginal canal with a branch of the pterygopalatine ganglion

65
Q

What does the pharyngeal artery supply?

A

The mucosa of the nasopharynx and sphenoid sinus

66
Q

What is the artery of the pterygoid canal a branch of?

A

The pterygopalatine part of the maxillary artery

67
Q

What does the artery of the pterygoid canal supply?

A

The walls and contents of the pterygoid canal and mucosa of the nasopharynx, auditory tube, and tympanic cavity

68
Q

Sphenopalatine artery is a branch of what?

A

Pterygopalatine part of the maxillary artery

69
Q

Where does the sphenopalatine artery enter the nasal cavity?

A

The sphenopalatine foramen

70
Q

What branches do the sphenopalatine artery give off?

A
  • posterolateral nasal branches

- posterior septal branches

71
Q

Posterolateral nasal branch of the sphenopalatine artery supplies what?

A

Supplies posterior part of lateral wall of nasal cavity

72
Q

Posterior septal branches of the sphenopalatine artery supplies what?

A

Mucosa of the posterior part of the nasal septum

Anatomy BLOCK 3 (13 decks)

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