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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
Where does the nerve of the pterygoid canal terminate
In the pterygopalatine ganglion
26
What synapses in the pterygopalatine ganglion?
Preganglionic parasympathetic
27
What kind of fibers just pass on through the pterygopalatine ganglion?
Postganglionic sympathetic fibers
28
Parasympathetic ganglion
- ciliary - otic - submandibular - pterygopalatine
29
What are the branches of the pterygopalatine ganglion
- greater palatine nerve - lesser palatine nerve - nasopalatine nerve - posterolateral branches - pharyngeal nerve
30
Where does the maxillary nerve (V2) exit?
The middle cranial fossa through the foramen rotundum
31
What kind of fibers does the maxillary )V2) nerve contain?
Sensory fibers
32
Where does the maxillary nerve (V2) enter after it passes through the foramen rotundum?
The pterygopalatine fossa and travels in the upper part of the fossa
33
After the maxillary V2 nerve travels through the upper part of the fossa where does it enter?
Enters the orbit through the inferior orbital
34
Once the maxillary nerve enters the orbit through the inferior orbital fissure, what does it change its name to?
Infraorbital nerve
35
Branches of the maxillary (V2) branch of the trigeminal
- intracranial branch - ganglionic branches - zygomatic nerve - zygomaticotemporal nerve - posterior superior alveolar nerve - middle superior alveolar nerve - anterior superior alveolar nerve
36
Intracranial branch of V2 innervated what?
Innervates dura mater in the middle cranial fossa
37
Ganglionic branches of the maxillary (V2) nerve connects what with what?
Connect V2 with the pterygopalatine ganglion
38
What kind of fibers do the ganglionic branches of the maxillary nerve have?
Sensory fibers (plus a few postganglionic parasympathetic fibers)
39
Zygomatic nerve branch of maxillary nerve divides into what?
Zygomaticotemporal and zygomaticofacial nerves
40
What does the zygomatic nerve of the maxillary nerve supply?
Skin over the temporal region and cheek
41
Zygomaticotemporal nerve branch of the maxillary nerve has branches that contain what
Postganglionic parasympathetic fibers destined for the lacrimal gland?
42
What nerve has fibers that are destined for the lacrimal gland?
Zygomaticotemporal nerve has branches that contain postganglionic parasympathetic fibers destined for the lacrimal gland
43
Nerve of pterygoid canal has what kind of fibers?
Postganglionic sympathetic and preganglionic parasympathetic
44
Posterior superior alveolar nerve branch of V2 innervation
Supplies maxillary molar teeth and mucosa of maxillary sinus
45
Middle superior alveolar nerve branch of the V2 innervation
Supplies maxillary premolars and mucosa of maxillary sinus
46
Anterior superior alveolar nerve branch of V2 innervation
Supplies maxillary incisors and canine teeth and mucosa of maxillary sinus
47
How much fluid can the maxillary sinus hold?
15ml of fluid
48
What fossa does the maxillary artery leave?
Infratemporal fossa
49
Where does the pterygopalatine (3rd) part of the maxillary artery enter the pterygopalatine fossa?
Through the pterygopalatine fissure
50
What do the pterygopalatine part of the maxillary artery branches follow?
Those of V2 and the pterygopalatine ganglion
51
Branches of the pterygopalatine part of the maxillary artery
- posterior superior alveolar artery - infraorbital artery - descending palatine artery - pharyngeal artery - artery of the pterygoid canal - sphenopalatine artery
52
Posterior superior alveolar artery innervates what?
Supplies the maxillary molar and premolars teeth, and mucosa of the maxillary sinus
53
What is the posterior superior alveolar artery a branch of?
The pterygopalatine part of the maxillary artery
54
Infraorbital artery accompanies what nerve?
Infraorbital nerve
55
What is the infraorbital artery a branch of?
Pterygopalatine part of the maxillary artery
56
Where does the infraorbital artery emerge at?
On the face and gives off some branches
57
What are the branches that the infraorbital artery give off when it emerges on the face?
- anterior superior alveolar artery | - terminal branches
58
Anterior superior alveolar arter supplies what?
Maxillary incisor and canine teeth, and mucosa of maxillary sinus
59
Termina branches of the infraorbital artery supply what?
Supply structures on the face
60
Descending palatine artery is a branch of what?
Pterygopalatine part of the maxillary artery
61
What does the descending palatine artery divide into?
The greater and lesser palatine arteries to hard and soft palates
62
Pharyngeal artery is a branch of what?
Ther pterygopalatine part of the maxillary artery
63
Where does the pharyngeal artery come from?
Pterygopalatine part of the maxillary artery
64
Where does the pharyngeal artery pass through?
The palatovaginal canal with a branch of the pterygopalatine ganglion
65
What does the pharyngeal artery supply?
The mucosa of the nasopharynx and sphenoid sinus
66
What is the artery of the pterygoid canal a branch of?
The pterygopalatine part of the maxillary artery
67
What does the artery of the pterygoid canal supply?
The walls and contents of the pterygoid canal and mucosa of the nasopharynx, auditory tube, and tympanic cavity
68
Sphenopalatine artery is a branch of what?
Pterygopalatine part of the maxillary artery
69
Where does the sphenopalatine artery enter the nasal cavity?
The sphenopalatine foramen
70
What branches do the sphenopalatine artery give off?
- posterolateral nasal branches | - posterior septal branches
71
Posterolateral nasal branch of the sphenopalatine artery supplies what?
Supplies posterior part of lateral wall of nasal cavity
72
Posterior septal branches of the sphenopalatine artery supplies what?
Mucosa of the posterior part of the nasal septum

Anatomy BLOCK 3 (13 decks)

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