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Anatomy Block 3 > Pterygopalatine Fossa > Flashcards

Pterygopalatine Fossa Flashcards

1
Q

Where is the pterygopalatine fossa located?

A

-small space that is medial the the infratemporal fossa
Anterior boundary: posterior surface of the maxilla
Posterior boundary: pterygoid process
Superior boundary: greater wing of the sphenoid
Medial boundary: perpendicular plate of palatine bone

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2
Q

Lateral wall of the pterygopalatine fossa

A

Pterygomaxillary fissure

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3
Q

Medial wall of pterygopalatine fossa

A

Sphenopalatine for amen

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4
Q

Anterior wall of pterygopalatine fossa

A

Inferior orbital fissure

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5
Q

Posterior wall of the pterygopalatine fossa

A

Pterygoid canal

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6
Q

Ceiling of pterygopalatine fossa

A

For amen rotundum

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7
Q

What is the floor of the pterygopalatine fossa?

A

NO FLOOR

-just a passage to the greater and lesser palatine canals

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8
Q

What nerve passes through the pterygopalatine fossa?

A

V2

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9
Q

What ganglion hangs from the pterygopalatine fossa?

A

Pterygopalatine ganglion

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10
Q

What kind of ganglion is the pterygopalatine ganglion?

A

Parasympathetic

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11
Q

What three types of fibers does the pterygopalatine ganglion receive?

A

Sensory
Preganglionic parasympathetic
Postganglionic sympathetic

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12
Q

What supplies the sensory fibers to the pterygopalatine ganglion?

A

V2

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13
Q

What supplies preganglionic parasympathetic fibers to the pterygopalatine ganglion?

A

Greater petrodollars nerve

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14
Q

What supplies the postganglionic sympathetic fibers to the pterygopalatine ganglion?

A

Deep petrodollars nerve

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15
Q

The greater petrosal nerve is a branch of what

A

Facial (CN VII)

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16
Q

What kind of fibers does the greater petrosal nerve have?

A

Preganglionic parasympathetic fibers

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17
Q

What makes up the nerve of the pterygoid canal?

A

Greater petrosal nerve and deep petrosal nerve

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18
Q

What kind of fibers does the nerve of the pterygoid canal have?

A

Autonomic fibers!

-preganglionic parasympathetic from greater petrosal nerve and postganglionic sympathetic from deep petrosal nerve

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19
Q

Where does the nerve to the pterygoid Canal terminate?

A

Pterygopalatine ganglion

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20
Q

What fibers synapse in the pterygopalatine ganglion and which ones pass through?

A
  • preganglionic parasympathetic fibers synapse there

- postganglionic sympathetic pass through

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21
Q

What are the branches from the pterygopalatine ganglion?

A
  • greater palatine nerve
  • lesser palatine nerve
  • nasopalatine nerve
  • posterolateral branches
  • pharyngeal nerve
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22
Q

What for amen does the maxillary nerve exit the middle cranial fossa through?

A

For amen rotundum

23
Q

What kind of fibers does the maxillary nerve contain?

A

Sensory fiber only

24
Q

What does the maxillary nerve enter the orbit through?

A

Inferior orbital fissure

25
Q

What does the maxillary nerve change its name to when it enters the orbit?

A

Infraorbital nerve

26
Q

What part of the orbit does the infraorbital nerve (maxillary nerve) travel through?

A

Floor of the orbit

27
Q

Intracranial branch of V2 innervates…

A

Dura mater in the middle cranial fossa

28
Q

Ganglionic branches of V2

A

Connects to the pterygopalatine ganglion

  • contains mostly sensory fibers
  • contains a few postganglionic parasympathetic fibers
29
Q

What does the zygomatic nerve (branch of V2) divide into?

A

Zygomaticotemporal and zygomaticofacial nerves

30
Q

What does the zygomatic nerve innervates?

A

Skin over temporal region and cheek

31
Q

Zygomaticotemporal nerve has a branch that contains what kind of fibers?

A

Postganglionic parasympathetic fibers

32
Q

What do the fibers from zygomaticotemporal nerve innervate?

A

Lacrimal gland

33
Q

Posterior superior alveolar nerve innervation

A

Supplies maxillary molar teeth and mucosa of maxillary sinus

34
Q

Middle superior alveolar nerve innervates what?

A

Supplies maxillary premolars and mucosa of maxillary sinus

35
Q

Anterior superior alveolar nerve innervates…

A

Supplies maxillary incisors and canine teeth and mucosa of maxillary sinus

36
Q

All of the alveolar nerves supply what?

A

Sensory fibers to the maxillary sinus

37
Q

How many mL can maxillary sinus hold?

A

15mL

38
Q

What does the maxillary artery enter the pterygopalatine fossa through?

A

The pterygomaxillary fissure

Coming laterally, entering medially

39
Q

The branches of the maxillary artery follow…

A

The branches of V2 and the pterygopalatine ganglion

40
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
41
Q

Posterior superior alveolar artery supplies…

A

Maxillary molar and premolars teeth

-mucosa of the maxillary sinus

42
Q

Infraorbital artery gives what branches

A
  • anterior superior alveolar artery

- terminal branches

43
Q

Anterior superior alveolar artery supplies…

A

Maxillary incisor and canine teeth

-mucosa of maxillary sinus

44
Q

Terminal branches of infraorbital artery supply…

A

Structures on the face

45
Q

Descending palatine artery divides into what branches

A

Divides into greater and lesser palatine arteries to hard AND soft palate

46
Q

Pharyngeal artery passes through what canal with a branch of what?

A

Passes through palatovaginal canal with a branch of the pterygopalatine ganglion

47
Q

What does the pharyngeal artery supply?

A

Supplies mucosa of the nasopharynx and sphenoid sinus

48
Q

Artery of the pterygoid canal supplies…

A

Walls and contents of the pterygoid canal

  • mucosa of the nasopharynx
  • auditory tube
  • tympanic cavity
49
Q

What is another name for the sphenopalatine artery?

A

Pterygopalatine artery

50
Q

What does the sphenopalatine artery enter the nasal canal through?

A

Sphenopalatine foramen

51
Q

What are the branches of the sphenopalatine artery?

A
  • posterolateral nasal branches

- posterior septal branches

52
Q

Posterolateral nasal branches supply…

A

Supplies posterior part of lateral wall of nasal cavity

53
Q

Posterior septal branches supply…

A

Supplies mucosa of the posterior part of the nasal septum

Anatomy Block 3 (13 decks)

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