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PNS #1 > 1: UIII V3 > Flashcards

1: UIII V3 Flashcards

1
Q

what is the name of V3?

A

mandibular division

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2
Q

How does the madibular division exit the cranial vault?

A

foramen ovale as a large sensory root and smal motor root

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3
Q

What roots combine to form the mandibular division in the infratemporal fossa?

A

large sensory and small motor roots

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4
Q

What does the mandibular division carry?

A

sensory and motor info

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5
Q

What sensory info is carried in the mandibular division?

A

skin over mandible, posterior cheek, and posterior temple; sensation from the mucosa of the lower oral cavity and cheeks

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6
Q

What motor information is carried in the mandibular division?

A

8 muscles including the muscles of mastication

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7
Q

What two branches are given off in the infratemporal region?

A

recurrent meningeal branch

medial pterygoid nerve

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8
Q

How does the recurrent meningeal nerve reenter the cranium?

A

through the foramen spinosum

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9
Q

What sensory info does the recurrent meningeal nerve carry?

A

from the dura of the middle cranial fossa, anterior crainial fossa, and calvarium

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10
Q

What kind of info does the medial pterygoid nerve carry?

A

motor info

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11
Q

What does the medial pterygoid nerve innervate?

A

medial pterygoid muscle

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12
Q

What kind of other motor fibers are supplied and where do they pass?

A

pass through otic ganglia

supply the tensor veli palatine and tensor tympani

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13
Q

After the infratemporal fossa what does the mandibular nerve divide into?

A

predominantly motor anterior division and predominantly sensory posterior division

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14
Q

What does the anterior division give rise to?

A

massester nerve
deep temporal nerve
lateral pterygoid nerve
buccal nerve

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15
Q

What type of info does the masseter nerve carry?

A

MOTOR: masseter muscle
SENSORY: tempromandibular joint

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16
Q

What are the branches of the deep temporal nerve?

A

anterior and posterior

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17
Q

What do the anterior and posterior deep temporal nerves supply?

A

temporalis muscle

18
Q

What does the lateral pterygoid nerve supply?

A

lateral pterygoid muscle

19
Q

** What is the major sensory division of the anterior mandibular nerve?

A

Buccal nerve

20
Q

What does the buccal nerve supply?

A

cheek (inside and outside) and buccal gingiva of the molars

21
Q

Which branch of the mandibular division is larger?

A

the posterior division

22
Q

Which mandibular division is primarily sensory?

A

posterior division

23
Q

Which mandibular division is primarily motor?

A

anterior division

24
Q

What are the divisions of the posterior mandibular division?

A

auriculotemporal nerve
lingual nerve
inferior alveolar nerve

25
Q

How does the auriculotemporal nerve travel?

A

through the parotid gland, posterior to the TMJ and into the infratemporal fossa

26
Q

What does the auriculotemporal nerve carry?

A

SENSORY: skin of temple and ear

Postganglionic parasympathetic: from OTIC GANGLION

27
Q

What does the otic ganglion carry?

A

postganglionic parasympathetic and some somatic motor fibers

28
Q

What does the lingual nerve carry?

A

sensory info from mucosa of the oral cavity

29
Q

What does the lingual nerve combine with and where?

A

chorda tympani (CN#7) in infratemporal fossa

30
Q

What does the inferior alveolar nerve carry?

A

sensory info from lower teeth and chin

31
Q

What are the two branches of the inferior alveolar nerve?

A

incisive branch

mental nerve

32
Q

What does the incisive branch supply?

A

incisors, canines, and 1st premolars and the adjacent gingiva

33
Q

What does the mental nerve supply?

A

labial gingiva adjacent to incisors and skin of lower lip and chin

34
Q

Where do the motor fibers from the inferior alveolar nerve branch off?

A

prior to the nerve passing through the mandibular foramen

35
Q

What do the motor fibers of the inferior alveolar nerve supply?

A

mylohyoid and anterior belly of the digastric muscle

36
Q

What are the two autonomic ganglia that communicate with the mandibular division?

A

submandubular ganglion

otic ganglion

37
Q

What kind of fibers are in the submandibular ganglion?

A

preganglionic fibers from CN#7 via lingual nerve after it combines with the chorda tympani

38
Q

What does the lingual nerve combine with before reaching the submandibular ganglion?

A

chorda tympani

39
Q

What kind of fibers are sent by the otic ganglion?

A

postganglionic fibers

40
Q

How do the otic ganglion fibers travel?

A

to the parotid gland of the auriculotemporal nerve

41
Q

What can the lingual nerve carry n some special cases?

A

taste information to the chorda tympani

42
Q

What is trigeminal neuralgia?

A

unilateral, extremely painful in the area supplies by the trigeminal nerve or a branch

PNS #1 (14 decks)

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