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Anatomy 2 Unit 2 > 10 - Pterygopalatine Fossa > Flashcards

10 - Pterygopalatine Fossa Flashcards

1
Q

Pterygopalatine Fossa: Features - associated with

A

7 openings

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2
Q

Pterygopalatine fossa;

A

Hub’ for nn. & aa. supplying middle face

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3
Q

Pterygopalatine ganglion (CN VII) - attached to

A

V2 by 2 (short) pterygopalatine nerves

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4
Q

Pterygopalatine ganglion (CN VII) - Receives

A

(Vidian) n. of pterygoid canal

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5
Q

Pterygopalatine ganglion (CN VII) - Composed of both

A

symp. & p-symp fibers

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6
Q

7 Openings of Pterygopalatine Fossa

A 
Pterygomaxillary fissue = 
Sphenopalatine foramen = 
Foramen rotundum = 
Inferior orbital fissure = 
Pterygoid canal = 
Pharyngeal canal = 
Palatine canal =
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7
Q

7 Openings of Pterygopalatine Fossa - Pterygomaxillary fissue =

A

lateral

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8
Q

7 Openings of Pterygopalatine Fossa - Sphenopalatine foramen =

A

medial

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9
Q

7 Openings of Pterygopalatine Fossa - Foramen rotundum =

A

posteriosuperior

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10
Q

7 Openings of Pterygopalatine Fossa - Inferior orbital fissure =

A

anterosuperior

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11
Q

7 Openings of Pterygopalatine Fossa - Pterygoid canal =

A

posterior

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12
Q

7 Openings of Pterygopalatine Fossa - Pharyngeal canal =

A

posterior

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13
Q

7 Openings of Pterygopalatine Fossa - Palatine canal =

A

inferior

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14
Q

The 3rd part of the Maxillary artery usually correlates with the

A

pterygomaxillary fissure

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15
Q

Superior alveolar (posterior, middle and anterior) –

Pterygomaxillary fissure

A

usually branches off just prior to entering the fissure

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16
Q

Pterygopalatine Fossa:Sphenopalatine foramen - Formed between

A

sphenoid bone & perpendicular plate of palatine bone.

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17
Q

Pterygopalatine Fossa - Sphenopalatine: medial exit from

A

pterygopalatine fossa

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18
Q

Sphenopalatine a. passes thru

A

to enter nasal cavity

Gives off post. lat. nasal & post. septal brs.

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19
Q

Pterygopalatine fossa - sphenopalatine nerves

A

Nasopalatine n. & Posterior lateral nasal nn. (V2)

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20
Q

Sphenopalatine Arterial Supply - Anterior ethmoidal brs – supply

A

upper anterior septum & lateral wall

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21
Q

Sphenopalatine Arterial Supply - Posterior ethmoidal brs. – supply

A

upper posterior septum & lateral wall

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22
Q

Sphenopalatine Arterial Supply - Sphenopalatine brs. –

A

supply lower septum & lateral wall

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23
Q

Sphenopalatine Arterial Supply - Sphenopalatine a. branches:

A

posterior septal a.

posterior lateral nasal aa.

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24
Q

Sphenopalatine Arterial Supply -

A

These form extensive anastomoses within nasal cavity

Damage may cause nose to bleed profusely

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25
Q

General Sensory Nerves - Brs. of nasociliary n. (CN V1) – supply

A

some of nasal cavity

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26
Q

General Sensory Nerves - Brs. of maxillary n. (CN V2) – supply

A

most of nasal cavity

27
Q

General sensory nerves branches: Supply both

A

septum & lateral wall

Brs. pass thru pterygopalatine ganglion, but do not synapse

28
Q

Inferior Orbital Fissure - Located in

A

posterior/inferior aspect of orbit

29
Q

Inferior Orbital Fissure - Ant./Supr. exit from

A

pterygopalatine fossa

30
Q

Infraorbital & zygomatic nn. (V2) pass thru

A

inferior orbital fissure

31
Q

Infraorbital n continues thru

A

infraorbital foramen to face

32
Q

Zygomatic n. sends off

A

2 brs. In orbit leading to face
Zygomaticotemporal n.
Zygomaticofacial n.

33
Q

Inferior orbital fissure - Accompanying aa. pass thru

A

with nn.

34
Q

Pterygoid Canal - Runs

A

post./ant. thru body of sphenoid bone

35
Q

Pterygoid Canal - Connects

A

foramen lacerum & sphenopalatine foramen

36
Q

Pterygoid Canal - Serves as one

A

post. Opening of pterygopalatine fossa

37
Q

Pterygoid Canal - Transmits

A

Vidian n. of pterygoid canal

38
Q

Pterygoid Canal - Transmits

A

pterygoid br. of maxillary a.

39
Q

Pharyngeal Canal/Goove - Found just

A

supr./lat. to alae of vomer bone

(~ 1 cm) ant./med. to pterygoid canal

40
Q

Pharyngeal Canal/Goove - Serves as other

A

post. opening of pterygopalatine fossa

41
Q

Pharyngeal Canal/Goove - Transmits

A

pharyngeal n. (CNV2

42
Q

Pharyngeal Canal/Goove - transmits

A

Transmits pharyngeal br. of maxillary a.

43
Q

Palatine Canal - Runs vertically just

A

lateral to perpendicular plate of palatine bone

44
Q

Palatine Canal - Serves as inferior

A

exit of pterygopalatine fossa

45
Q

Palatine Canal - Transmits

A

Greater & Lesser Palatine Nn. (CN V2)

46
Q

Palatine Canal - Transmits

A

descending palatine a.

47
Q

Palatine Canal - Emerge thru

A

greater and lesser palatine foramen

48
Q

Greater & Lesser Palatine aa.; each

A

runs with n.

49
Q

Palatine Nn. & Aa. - Emerge thru

A

greater and lesser palatine foramen

50
Q

Vidian N. of Pterygoid Canal - Postganglionic symp. fibers from

A

Deep Petrosal n.

Internal carotid plexus

51
Q

Vidian N. of Pterygoid Canal - Preganglionic p-symp. fibers from

A 
Greater Petrosal n.
CN VII (Facial
52
Q

Vidian N. of Pterygoid Canal - Supply the

A

lacrimal gland, nasal & palatal glands

53
Q

V2 goes right through

A

pterygopalatine fossa, also terminating branch of max artery

54
Q

Cell bodies of ganglion associated with cn means

A

that cell bodies are of CN origin.

55
Q

Nasopalatine nerve runs on the

A

septum

56
Q

Fibers to lacrimal gland from zygomatic/communicating branch

A

p-symp that just synapsed in pterygopalatine fossa

57
Q

Deep petrosal fibers synapse in

A

superior cervical ganglion

58
Q

Lesser palatine foramen found on

A

pyramidal process of palatine bone

59
Q

deep and greater petrusal n join to form

A

nerve of pterygoid canal aka vidian n

60
Q

vidian n

A

postsynaptic symp from deep pterygoid, presynaptic p-symp that synpase in pterygopalatine ganglia

61
Q

Nasal mucosa is

A

ciliated pseudostratified columnar epithelium with goblet cells

62
Q

motor is

A

superficial

63
Q

sensory is

A

deep

64
Q

Zygomatic nerve in orbit is

A

sensory - V2

Anatomy 2 Unit 2 (15 decks)

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