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PNS > Mandibular Division > Flashcards

Mandibular Division Flashcards

1
Q

Where does the mandibular division exit the cranial vault

A

Through the foramen ovale

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2
Q

What does the mandibular division leave the cranial vault as

A

A large sensory root and a small motor root

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3
Q

Where do the large sensory root and small motor root combine to form the mandibular division

A

The infratemporal fossa

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4
Q

The Mandibular division carries what kind of fibers

A

Both motor and sensory

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5
Q

Where does the mandibular division carry sensation from

A

Skin over mandible, posterior cheek, posterior temple, and from the mucosa of the lower oral cavity and cheeks

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6
Q

How many m. does the mandibular division innervate

A
  1. 4 of which are the m. of mastication
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7
Q

What 2 branches of the mandibular division are given off in the infratemporal fossa

A

Recurrent meningeal branch and Medial pterygoid n.

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8
Q

What are the m. of mastication

A

Masseter, Temporalis, Med. and Lat. pterygoid m.

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9
Q

The recurrent meningeal branch (nervus spinosum) reenters the cranium via what

A

The Foramen spinosum

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10
Q

The recurrent meningeal branch (nervus spinosum) carries sensory info from where

A

The dura of the middle cranial fossa, ant. cranial fossa, and calvarium

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11
Q

The Medial pterygoid n. is the motor supply for what

A

The medial pterygoid m.

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12
Q

What do the medial pterygoid n. fibers that pass through the otic ganglion supply

A

Tensor veli palatine and tensor tympani

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13
Q

Is the anterior division of the mandibular n. predominantly motor or sensory

A

Motor

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14
Q

Is the posterior division of the mandibular n. predominantly motor or sensory

A

Sensory

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15
Q

What 4 n. does the anterior division of the mandibular n. give rise to

A

Masseter n., Deep Temporal n., Lat. Pterygoid n., and Buccal n.

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16
Q

The masseter n. provides motor to the masseter, and carries sensory info from where

A

Temporomandibular joint

17
Q

The ant. and post. branches of the deep temporal n. both supply

A

The temporalis m.

18
Q

What info does the Buccal n. carry

A

Sensation from the cheek and buccal gingivae of the molars

19
Q

Which division (ant. or post.) of the mandibular division is larger

A

Posterior

20
Q

What does the auriculotemporal n. pass through

A

The parotid gland

21
Q

Where does the auriculotemporal n. carry sensory info from

A

The skin of the temple and ear

22
Q

T/F:The auriculotemporal n. carries some postganglionic parasympathetic fibers from the otic ganglion

A

True

23
Q

What kind of info does the lingual n. of the posterior division carry

A

Sensory from the mucosa of the oral cavity

24
Q

Where does the lingual n. combine with the chorda tympani

A

In the infratemporal fossa

25
Q

What kind of info does the inferior alveolar n. carry

A

Sensory info from the lower teeth and chin. has 2 branches

26
Q

What does the incisive branch supply

A

The incisors, canines, and 1st premolars and adjacent gingivae

27
Q

What does the mental n. supply

A

The labial gingivae adjacent to the incisors and the skin of the lower lip and chin

28
Q

Prior to entering the mandibular foramen, the motor fibers carried in the inf. alveolar n. diverge and supply what

A

The mylohyoid and ant. belly of digastric

29
Q

What 2 autonomic ganglia communicate with the mandibular division

A

Submandibular and Otic ganglia

30
Q

The submandibular ganglion receives preganglionic fibers from where after it combines with the chorda tympani

A

The lingual n.

31
Q

Where does the otic ganglion send postganglionic fibers to the parotid gland via what

A

The auriculotemporal n.

32
Q

T/F: The lingual n. may convey some taste info to the chorda tympani

A

True

PNS (3 decks)

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