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Anatomy 2 Unit 2 > 10 - Pterygopalatine Fossa > Flashcards

10 - Pterygopalatine Fossa Flashcards

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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
General Sensory Nerves - Brs. of nasociliary n. (CN V1) – supply
some of nasal cavity
26
General Sensory Nerves - Brs. of maxillary n. (CN V2) – supply
most of nasal cavity
27
General sensory nerves branches: Supply both
septum & lateral wall | Brs. pass thru pterygopalatine ganglion, but do not synapse
28
Inferior Orbital Fissure - Located in
posterior/inferior aspect of orbit
29
Inferior Orbital Fissure - Ant./Supr. exit from
pterygopalatine fossa
30
Infraorbital & zygomatic nn. (V2) pass thru
inferior orbital fissure
31
Infraorbital n continues thru
infraorbital foramen to face
32
Zygomatic n. sends off
2 brs. In orbit leading to face Zygomaticotemporal n. Zygomaticofacial n.
33
Inferior orbital fissure - Accompanying aa. pass thru
with nn.
34
Pterygoid Canal - Runs
post./ant. thru body of sphenoid bone
35
Pterygoid Canal - Connects
foramen lacerum & sphenopalatine foramen
36
Pterygoid Canal - Serves as one
post. Opening of pterygopalatine fossa
37
Pterygoid Canal - Transmits
Vidian n. of pterygoid canal
38
Pterygoid Canal - Transmits
pterygoid br. of maxillary a.
39
Pharyngeal Canal/Goove - Found just
supr./lat. to alae of vomer bone | (~ 1 cm) ant./med. to pterygoid canal
40
Pharyngeal Canal/Goove - Serves as other
post. opening of pterygopalatine fossa
41
Pharyngeal Canal/Goove - Transmits
pharyngeal n. (CNV2
42
Pharyngeal Canal/Goove - transmits
Transmits pharyngeal br. of maxillary a.
43
Palatine Canal - Runs vertically just
lateral to perpendicular plate of palatine bone
44
Palatine Canal - Serves as inferior
exit of pterygopalatine fossa
45
Palatine Canal - Transmits
Greater & Lesser Palatine Nn. (CN V2)
46
Palatine Canal - Transmits
descending palatine a.
47
Palatine Canal - Emerge thru
greater and lesser palatine foramen
48
Greater & Lesser Palatine aa.; each
runs with n.
49
Palatine Nn. & Aa. - Emerge thru
greater and lesser palatine foramen
50
Vidian N. of Pterygoid Canal - Postganglionic symp. fibers from
Deep Petrosal n. | Internal carotid plexus
51
Vidian N. of Pterygoid Canal - Preganglionic p-symp. fibers from
``` Greater Petrosal n. CN VII (Facial ```
52
Vidian N. of Pterygoid Canal - Supply the
lacrimal gland, nasal & palatal glands
53
V2 goes right through
pterygopalatine fossa, also terminating branch of max artery
54
Cell bodies of ganglion associated with cn means
that cell bodies are of CN origin.
55
Nasopalatine nerve runs on the
septum
56
Fibers to lacrimal gland from zygomatic/communicating branch
p-symp that just synapsed in pterygopalatine fossa
57
Deep petrosal fibers synapse in
superior cervical ganglion
58
Lesser palatine foramen found on
pyramidal process of palatine bone
59
deep and greater petrusal n join to form
nerve of pterygoid canal aka vidian n
60
vidian n
postsynaptic symp from deep pterygoid, presynaptic p-symp that synpase in pterygopalatine ganglia
61
Nasal mucosa is
ciliated pseudostratified columnar epithelium with goblet cells
62
motor is
superficial
63
sensory is
deep
64
Zygomatic nerve in orbit is
sensory - V2

Anatomy 2 Unit 2 (15 decks)

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