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Anatomy II: Exam II > Parotid and Temporal Regions, and TMJ > Flashcards

Parotid and Temporal Regions, and TMJ Flashcards

1
Q

structures in parotid gland

A

retromandibular v
ECA
CN VII

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2
Q

location of parotid gland

A

anterior/inferior to external acoustic meatus

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3
Q

retromandibular v

A

formed from superficial temporal and maxillary vv, drains to IJV and EJV

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4
Q

ECA

A
  • runs with retromandibular v

- splits posterior to mandible neck (superficial temporal a and maxillary a)

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5
Q

carotid sheath contents and location

A
  • ICA, IJV, CN X

- deep to parotid bed

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6
Q

what is the sensory ganglion of CN VII and where is it located?

A

geniculate ganglion, in temporal bone

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7
Q

contents of temporal fossa

A

fat pad, thick fascia, temporalis m, neurovasculature

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8
Q

neurovasculature in temporal fossa

A
  • superficial, middle, and deep temporal aa
  • CN V3: auriculotemporal n and ant and post deep temporal nn
  • temporal brs of CN VII
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9
Q

auriculotemporal n

A
  • travels with superficial temporal a and v
  • provides sensory to TMJ and lat scalp
  • carries parasymp fibers from CN XI to parotid
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10
Q

ant and post deep temporal nn

A

passes sup to lat pterygoid m, deep to temporalis

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11
Q

what is the infratemporal fossa continuous with?

A

retropharyngeal space

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12
Q

borders of infratemporal fossa

A

lat: ramus
med: lat pterygoid plate
ant: maxilla
post: tympanic plate, mastoid and styloid processes

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13
Q

infratemporal fossa contents

A

muscular: temporalis, med and lat pterygoids
neurovasculature: maxillary a and v and brs, pterygoid plexus of vv, CN V3, post sup alveolar n (CN V2), chorda tympani, otic ganglion, lesser petrosal

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14
Q

CN V3

A

large sensory root, small motor root

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15
Q

divisions of CN V3

A

ant: small, mainly motor (1 sensory br: buccal n)
post: large, mainly sensory (1 motor br: mylohyoid)

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16
Q

CN V3 brs

A

sensory: auriculotemporal, buccal, inferior alveolar, lingual
motor: masseteric, A and P deep temporal, med and lat pterygoid

17
Q

chorda tmypani

A

special sensory of CN VII, joins lingual posteriorly, supplies parasymp innervation to lower 2 salivary glands, taste to ant 2/3 tongue

18
Q

what type of joint is TMJ

A

modified hinge type synovial

19
Q

stylomandibular ligament

A

styloid process->post ramus

separates parotid and submand glands

20
Q

sphenomandibular ligament

A

spine of sphenoid bone->lingula

separated from capsule by max a and auriculotemporal n

Anatomy II: Exam II (12 decks)

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