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Anatomy > Infratemporal Region > Flashcards

Infratemporal Region Flashcards

1
Q

What vascurlature passesthru the petrotympanic fissure?

A

Anterior tympanic artery and chorda tympani nerve

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2
Q

Contents if the infratemporal fossa

A

Medial/Lateral pterygoid muscles, maxillary artery, pterygoid venous plexus, mandibular nerve, chorda tympani, otic ganglion

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3
Q

By what means does the maxiallry artery leave the infratemporal fossa?

A

Passes thru the pterygomandibular fissure

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4
Q

Branches from part 1 of maxillary artery

A

Middle meningeal, inferior alveolar, deep auricular, anterior tympanic, accessory meningeal

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5
Q

What branch splits the roots of the auricularotemporal nerve?

A

middle meningeal

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6
Q

What foramen does the middle meningeal artery use to enter the skull?

A

foramen spinosum

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7
Q

What is the inferior alveolar artery’s path?

A

enters mandibular foramen with the nerve, branches into myohyoid just before the foramen, becomes the mental artery after the mental foramen

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8
Q

Where does the deep auricular artery go to?

A

the auditory tube

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9
Q

Anterior tympanic artery

A

supplies middle ear

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10
Q

Foramen for accessory meningeal

A

Foramen ovale

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11
Q

Branches from part 2 of maxillary artery

A

Anterior/posterior deep temporals, masseteric, buccal, pterygoid (lateral and medial)

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12
Q

What branch of maxillary artery enters the infrtemporal surface of maxilla near pterygomaxillary fissure?

A

posterior superior alveolar artery

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13
Q

Superior connection to the pterygoid venous plexus

A

Cavernous sinus

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14
Q

Anterior connection to the pterygoid venous plexus

A

Facial vein

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15
Q

Poerior connection to the pterygoid venous plexus

A

Maxillary vein

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16
Q

How do infections spread in the facial venous system

A

Can spread in any direction due to a lack of valves

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17
Q

Where are the sensory fibers of mandibular nerve the trigeminal nerve located?

A

trigeminal ganglion

18
Q

What foramen does the mandibular nerve pass thru?

A

Foramen ovale

19
Q

Where is the otic ganglion located?

A

medial surface of the mandibular nerve, just below the foramen ovale

20
Q

Where do the preganglionic parasympathetic fibers of the otic ganglion come from?

A

glossopharyngeal nerve

21
Q

What do the postganglionic parasympathetic fibers join?

A

auriculotemporal to reach the parotid

22
Q

Lingual nerve pathway

A

Enters oral cavity just lateral to medial pterygoid, runs along internal surface of mandible, inferior to 3rd molar tooth

23
Q

What does the lingual nerve innervate?

A

sensory to anterio 2/3 of tongue and floor of orval cavity

24
Q

What does the chorda tympani nerve innervate?

A

taste fibers from anterior 2/3 of tongue

25
Q

From what nerves does the chorda tympani arise from?

A

facial nerve

26
Q

Where do preganglionic parasympathetic fibers of the submandibular ganglion run?

A

Via the chorda tympani to the submandibular ganglion

27
Q

Where do postganglionic parasympathetic fibers from the submandibular gland run to?

A

submandibular/sublingual salivary glands

28
Q

Lingual nerve injury proximal to chorda tympani results in what?

A

general sensation loss (just the lingual nerve is hurt)

29
Q

Injury to lingual nerve distal to chorda tympani results in what?

A

both taste and sensation lost

30
Q

Mylohyoid nerve

A

branches off of inferior alveolar nerve just before the foramen to innervate the mylohyoid and anterior belly of digastric

31
Q

What nerves pass between lateral and medial pterygoid muscles?

A

Lingual and inferior alveolar

32
Q

What nerve is split by the middle meningeal artery?

A

auriculotemporal nerve

33
Q

What provides sensory fibers to the parotid, ear, and temporal regions?

A

auriculotemporal nerve

34
Q

Secretomotor fibers of the parotid gland are from what?

A

otic ganglion via the auriculotemporal nerve

35
Q

Path of secretomotor fibers of the parotid gland

A

glossopharyngeal nerve, tympanic nerve, tympanic plexus, lesser petrosal nerve, otic ganglion, auriculotemporal nerve

36
Q

Main sensory nerve of the cheek skin and mucosal lining of the cheek

A

buccal nerve

37
Q

What nerve (and pathway) supplies the temporalis?

A

deep temporal nerves (usually 2) supply the muscle from the deep surface

38
Q

Path of masseteric nerve

A

passes thru mandibular notch to innervate the masseter

39
Q

Where do the lateral/medial pterygoid nerves originate from?

A

mandibular division of trigeminal nerve

40
Q

Motor fibers to muscles of middle ear

A

nerve to tensor tympani

41
Q

motor fibers to soft palate muscles

A

tensor veli palatini

42
Q

When does the chords tympani join the lingual nerve?

A

Inferior border of lateral pterygoid muscle

Anatomy (35 decks)

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