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3 Anatomy > Pterygopalatine fossa > Flashcards

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
Q

name this nerve of CNV2

A

nasopalatine

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26
Q

name this nerve of CNV2

A

greater and lesser palatine

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27
Q

name this nerve of CNV2

A

posterior superior alveolar nerve

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28
Q

name this nerve of CNV2

A

zygomatic

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29
Q

name this nerve of CNV2

A

zygomaticotemporal

30
Q

name this nerve of CNV2

A

zygomaticofacial

31
Q

name this nerve of CNV2

A

communicating branch to CNV1

32
Q

name this nerve of CNV2

A

lacrimal nerve CNV1

33
Q

this is nerve in bone, what structure is this?

A

infraorbital groove/canal

34
Q

name this nerve of CNV2

A

middle superior alveolar nerve

35
Q

name this nerve of CNV2

A

anterior superior alveolar nerve

36
Q

name this foramen in which CNV2 exits to the face

A

infraorbital foramen

37
Q

name these nerves of CNV2

A

infraorbital nerves

38
Q

name this nerve and foramen

A

CNV2
foramen rotundum

39
Q

name this area

A

pterygopalatine fossa

40
Q

name this nerve structure

A

pterygopalatine ganglion

41
Q

name these nerves

A

greater and lesser palatine nerves
and
nasopalatine nerve (with sphenopalatine artery)

42
Q

what does the nasopalatine nerve supply?

A

medial wall of the nasal cavity

43
Q

name these nerves

A

infraorbital nerves

44
Q

what do the infraorbital nerves supply?

A

skin/mucosa of the upper lip

45
Q

name this nerve of CNV2

A

zygomatic nerve

46
Q

name these nerves of CNV2

A

zygomaticofacial
zygomaticotemporal

47
Q

name this nerve of CNV2

A

posterior superior alveolar nerve

48
Q

name this nerve of CNV2

A

middle superior alveolar nerve

49
Q

name this nerve of CNV2

A

anterior superior alveolar nerve

50
Q

what do the middle and anterior superior alveolar nerve supply?

A

dentition
mucosa of maxillary sinus
labial and buccal gingiva

51
Q

describe the path of the preganglionic sympathetic fibres from the brain to supply the nasal cavity

A

down spinal chord

exit in T1 spinal nerve

travel superiorly in the sympathetic chain

synapse in superior cervical sympathetic ganglion

52
Q

describe the path of postsynaptic fibres from the superior cervical sympathetic ganglion to the cranial cavity

A

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
Q

name this structure

A

superior cervical sympathetic ganglion in sympathetic chain

54
Q

name this nerve

A

internal carotid nerve

55
Q

name this artery

A

internal carotid artery

56
Q

name these nerves

A

internal carotid plexus

57
Q

name this nerve

A

deep petrosal nerve

58
Q

name this foramen

A

pterygoid canal on sphenoid (pterygopalatine fossa)

59
Q

name this structure

A

pterygopalatine ganglion

60
Q

describe the path of postsynaptic sympathetic fibres from the cranial cavity to the nasal cavity

A

internal carotid plexus
deep petrosal nerve
through pterygoid canal
through pterygopalatine ganglion
distributed through other nerves

61
Q

parasympathetics are distrubuted via what cranial nerves?

A

CNIII
CNVII
CNIX
CNX

62
Q

what cranial nerve supplies parasympathetic fibres to the lacrimal gland, nasal and palatine region?

A

CNVII

63
Q

name this nerve

A

CNVII
in internal acoustic meatus

64
Q

name this nerve

A

greater petrosal nerve
in middle cranial fossa

65
Q

name this nerve

A

nerve of pterygoid canal

66
Q

the nerve of pterygoid canal caries what fibres?

A

postsynaptic sympathetic fibres

presynaptic parasympathetic fibres

67
Q

name this structure

A

pterygopalatine ganglion

68
Q

what happens at the pterygopalatine ganglion?

A

postsynaptic sympathetic fibres pass through

presynaptic parasympathetic fibres synapse

69
Q

describe the parasympathetic nerve supply to the lacrimal gland, nasal and palatine region

A

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
Q

activation of the pterygopalatine ganglion results in what?

A

production of tears and mucous in the nasal cavity

3 Anatomy (9 decks)

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