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PNS > Mandibular Division > Flashcards

Mandibular Division Flashcards

1
Q

Where does the Mandibular division exit the cranial vault?

A

foramen ovale

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2
Q

Where do the large sensory root and the small motor root of the mandibular division combine?

A

The infratemporal fossa

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3
Q

What kind of fibers does the mandibular division carry?

A

both motor and sensory

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4
Q

The mandibular division of the Trigeminal nerve carries sensory information from the skin over the mandible, posterior cheek and what other skin?

A

over the posterior temple

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5
Q

Other than skin, the mandibular division carries sensation from where?

A

mucosa of the lower oral cavity and cheeks

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6
Q

how many muscles does the mandibular division supply motor innervation?

A

16 (8 on each side)

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7
Q

List the muscles innervated by the mandibular division.

A

Muscles of mastication (masseter, temporalis, medial pterygoid and lateral pterygoid), Tensor Veli Palatine, Tensor Tympani, Mylohyoid, and the Anterior Belly of Digastric

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8
Q

Which two branches are given off in the infratemporal fossa?

A

recurrent meningeal and medial pterygoid nerve

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9
Q

What is the other name for the recurrent meningeal nerve?

A

nervus spinosum

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10
Q

Where does the recurrent meningeal branch reenter the cranium?

A

foramen spinosum

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11
Q

What carries sensory info from the dura of the middle cranial fossa?

A

recurrent meningeal branch

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12
Q

What all is innervated by the recurrent meningeal branch of the mandibular division of the trigeminal nerve?

A

dura from the middle cranial fossa, anterior cranial fossa, and calvarium (skull cap dura)

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13
Q

What nerve is the motor supply for the medial pterygoid muscle?

A

medial pterygoid nerve

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14
Q

Some fibers from the medial pterygoid nerve pass through a ganglion. What is its name?

A

Otic Ganglion

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15
Q

What nerve supplies the tensor veli palatine and tensor tympani muscles?

A

medial pterygoid nerve of the mandibular division of the trigeminal nerve.

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16
Q

Which division of the mandibular division of the trigeminal nerve is predominately motor?

A

anterior division

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17
Q

Which division of the mandibular division of the trigeminal nerve is predominately sensory?

A

posterior division

18
Q

What are the 4 nerves given off of the anterior division of the mandibular division?

A

(MLB players chew Dark Tobacco) Masseter nerve, lateral pterygoid nerve, buccal nerve, and deep temporal nerve

19
Q

In addition to carrying motor innervation to masseter muscle, the masseter nerve also carries sensory info to what?

A

Temporomandibular joint

20
Q

What nerve from the anterior division of the mandibular division gives off an anterior and posterior branch that supply the temporalis muscle?

A

deep temporal nerve

21
Q

What nerve innervates the lateral pterygoid muscle?

A

lateral pterygoid nerve

22
Q

what is the major sensory branch of the anterior division of the mandibular division of the trigeminal nerve?

A

buccal nerve

23
Q

What nerve conveys sensation from the buccal gingivae of the molars, and the skin and mucosal surfaced of the cheek?

A

buccal nerve

24
Q

What are the nerves given off of the posterior division of the mandibular division?

A

(PAIL) Posterior division has Auriculotemporal, Inferior alveolar, Lingual

25
Q

What kind of information is carried by the auriculotemporal nerve?

A

sensory

26
Q

What nerve passes through the parotid gland, posterior to the TMJ, and into the infratemporal fossa?

A

auriculotemporal

27
Q

What nerve carries sensory info from the skin of the temple and ear?

A

auriculotemporal

28
Q

In addition to carrying info from the skin and ear, the auricular nerve carries what kind of fibers from the otic ganglion?

A

postganglionic parasympathetic fibers

29
Q

What nerve of the posterior division of the mandibular nerve conveys sensory info from the mucosa of the oral cavity?

A

lingual nerve

30
Q

What nerve combines with a branch of CN VII, the chorda tympani, in the infratemporal fossa?

A

lingual nerve

31
Q

What nerve carries sensory info from the lower teeth and the chin?

A

inferior alveolar nerve

32
Q

What are the branches of the inferior alveolar nerve?

A

incisive branch and mental nerve

33
Q

What nerve supplies the incisors, canines, and 1st premolars (and adjacent gingivae)?

A

incisive branch of the inferior alveolar nerve of the posterior division of the mandibular division of the trigeminal nerve

34
Q

What nerve supplies the labial gingivae adjacent to the incisors and the skin of the lower lip and chin?

A

mental nerve

35
Q

Prior to passing through the mandibular foramen, motor fibers carried in the inferior alveolar nerve diverge and supply what two muscles?

A

mylohyoid and the anterior belly of the digastric muscle

36
Q

What two autonomic ganglia communicate with the mandibular division?

A

submandibular and otic ganglia

37
Q

Where does the submandibular ganglion receive preganglionic fibers from?

A

CN VII

38
Q

How does the submandibular ganglion receive fibers from CN VII?

A

by way of the lingual nerve, after it combines with the chorda tympani

39
Q

Where does the Otic ganglion send postganglionic fibers?

A

to the parotid gland by way of the auriculotemporal nerve

40
Q

In some cases, the lingual nerve may convey some taste info (special sensory) to where?

A

the chorda tympani

41
Q

What is one clinical consideration associated with the mandibular division?

A

Trigeminal Neuralgia

42
Q

What are the four ganglia in the head as mentioned in class?

A

Ciliary, pterygopalatine, otic, and submandibular

PNS (43 decks)

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