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Pterygopalatine fossa Flashcards

1
Q

what is hayfever?

A

allergy to pollen resulting in acute inflammation of nasal mucosa: dilated blood vessels

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2
Q

what is the cause of hayfever?

A

activation of “ganglion of hayfever” (pterygopalatine ganglion)
resulting in:
- nasal glands secrete mucous
- lacrimal glands produce tears

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3
Q

where is the pterygopalatine fossa located?

A

medial/deep to the infratemporal fossa

pterygomaxillary fissure opens into the pterygopalatine fossa

between the lateral pterygoid plate and maxilla

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4
Q

the pterygopalatine fossa communicates anteriorly with what?

A

orbit
via inferior orbital fissure

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5
Q

the pterygopalatine fossa communicates posteriorly with what?

A

middle cranial fossa
via foramen rotundum and pterygoid canal

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6
Q

the pterygopalatine fossa communicates laterally with what?

A

infratemporal fossa
via pterygomaxillary fissure

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7
Q

the pterygopalatine fossa communicates medially with what?

A

nasal cavity
via sphenopalatine foramen

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8
Q

the pterygopalatine fossa is continuous with what?

A

sphenopalatine foramen

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9
Q

the pterygopalatine fossa contains what?

A

terminal 1/3 maxillary artery
CNV2
pterygopalatine ganglion (hayfever)

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10
Q

name this artery

A

external carotid artery

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11
Q

name this artery

A

maxillary artery

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12
Q

name this artery

A

greater and lesser palatine arteries from descending palatine artery

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13
Q

name this artery

A

posterior superior alveolar artery

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14
Q

name this artery

A

sphenopalatine artery

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15
Q

name this artery

A

infraorbital artery

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16
Q

name these arteries

A

middle and anterior superior alveolar artery

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17
Q

what does the infraorbital artery supply?

A

through inferior orbital fissure and infraorbital foramen to supply the skin of the face

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18
Q

understand this

A
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19
Q

name this nerve that supplies the anterosuperior lateral and medial walls of the nasal cavity?

A

anterior ethmoidal branch of nasociliary - CNV1

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20
Q

name this nerve that supplies the posteroinferior lateral walls of the nasal cavity

A

lateral nasal branches of greater palatine nerve - CNV2

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21
Q

name this nerve that supplies the posteroinferior medial walls of the nasal cavity

A

nasopalatine nerve - CNV2

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22
Q

name the foramen CNV2 exits through

A

foramen rotundum

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23
Q

name this structure of CNV2

A

pterygopalatine ganglion

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24
Q

name these nerves of CNV2

A

ganglionic branches

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25
name this nerve of CNV2
nasopalatine
26
name this nerve of CNV2
greater and lesser palatine
27
name this nerve of CNV2
posterior superior alveolar nerve
28
name this nerve of CNV2
zygomatic
29
name this nerve of CNV2
zygomaticotemporal
30
name this nerve of CNV2
zygomaticofacial
31
name this nerve of CNV2
communicating branch to CNV1
32
name this nerve of CNV2
lacrimal nerve CNV1
33
this is nerve in bone, what structure is this?
infraorbital groove/canal
34
name this nerve of CNV2
middle superior alveolar nerve
35
name this nerve of CNV2
anterior superior alveolar nerve
36
name this foramen in which CNV2 exits to the face
infraorbital foramen
37
name these nerves of CNV2
infraorbital nerves
38
name this nerve and foramen
CNV2 foramen rotundum
39
name this area
pterygopalatine fossa
40
name this nerve structure
pterygopalatine ganglion
41
name these nerves
greater and lesser palatine nerves and nasopalatine nerve (with sphenopalatine artery)
42
what does the nasopalatine nerve supply?
medial wall of the nasal cavity
43
name these nerves
infraorbital nerves
44
what do the infraorbital nerves supply?
skin/mucosa of the upper lip
45
name this nerve of CNV2
zygomatic nerve
46
name these nerves of CNV2
zygomaticofacial zygomaticotemporal
47
name this nerve of CNV2
posterior superior alveolar nerve
48
name this nerve of CNV2
middle superior alveolar nerve
49
name this nerve of CNV2
anterior superior alveolar nerve
50
what do the middle and anterior superior alveolar nerve supply?
dentition mucosa of maxillary sinus labial and buccal gingiva
51
describe the path of the preganglionic sympathetic fibres from the brain to supply the nasal cavity
down spinal chord exit in T1 spinal nerve travel superiorly in the sympathetic chain synapse in superior cervical sympathetic ganglion
52
describe the path of postsynaptic fibres from the superior cervical sympathetic ganglion to the cranial cavity
internal carotid nerve forms internal carotid plexus on the internal carotid artery follow the internal carotid artery to gain access to the cranial cavity
53
name this structure
superior cervical sympathetic ganglion in sympathetic chain
54
name this nerve
internal carotid nerve
55
name this artery
internal carotid artery
56
name these nerves
internal carotid plexus
57
name this nerve
deep petrosal nerve
58
name this foramen
pterygoid canal on sphenoid (pterygopalatine fossa)
59
name this structure
pterygopalatine ganglion
60
describe the path of postsynaptic sympathetic fibres from the cranial cavity to the nasal cavity
internal carotid plexus deep petrosal nerve through pterygoid canal through pterygopalatine ganglion distributed through other nerves
61
parasympathetics are distrubuted via what cranial nerves?
CNIII CNVII CNIX CNX
62
what cranial nerve supplies parasympathetic fibres to the lacrimal gland, nasal and palatine region?
CNVII
63
name this nerve
CNVII in internal acoustic meatus
64
name this nerve
greater petrosal nerve in middle cranial fossa
65
name this nerve
nerve of pterygoid canal
66
the nerve of pterygoid canal caries what fibres?
postsynaptic sympathetic fibres presynaptic parasympathetic fibres
67
name this structure
pterygopalatine ganglion
68
what happens at the pterygopalatine ganglion?
postsynaptic sympathetic fibres pass through presynaptic parasympathetic fibres synapse
69
describe the parasympathetic nerve supply to the lacrimal gland, nasal and palatine region
CNVII greater petrosal nerve joins with deep petrosal nerve forming nerve of pterygoid canal synapse at pterygopalatine ganglion Postsynaptic postganglionic parasympathetic fibres To lacrimal gland, nasal and palatine region
70
activation of the pterygopalatine ganglion results in what?
production of tears and mucous in the nasal cavity

3 Anatomy (9 decks)

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