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PNS > CN V Trigeminal Mixed > Flashcards

CN V Trigeminal Mixed Flashcards

1
Q

What is the largest CN?

A

Trigeminal

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2
Q

How many muscles does the branchial motor portion innervate?

A

8 total

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3
Q

Name the 4 mastication muscles

A

Temporalis
Masseter
Medial pterygoid
Lateral pterygoid

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4
Q

Name 2 deglutition muscles

A

Anterior belly of the digastric

Mylohyoid

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5
Q

What are 2 additional muscles innervated by the branchial motor besides the mastication and deglutition muscles?

A

Tensor veli palatini

Tensor tympani

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6
Q

What is the apparent origin of trigemnial?

A

Upper anterolateral portion of pons

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7
Q

What is the larger and superior root of trigeminal?

A

Sensory root

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8
Q

What is the smaller root that comes from the nucleus of origin?

A

Motor root

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9
Q

The sensory fibers consist of central processes from pseudounipolar neurons in what ganglion?

A

Gasserian or Semilunar ganglion

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10
Q

The trigmenal ganglion is located in the dura mater in the trigeminal impression of what bone?

A

Petrosal portion of temporal bone

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11
Q

What is the largest sensory ganglion in the body?

A

Trigeminal ganglion

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12
Q

What holds the primary sensory neuron of the trigeminal n?

A

Trigeminal ganglion

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13
Q

The axon of the trigeminal ganglion synapses with what 3 nuclei of termination?

A

Mesencephalic
Pontine
Spinal

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14
Q

This nucleus of termination is mid pons

A

Pontine

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15
Q

This nucleus of termination is located lateral to the cerebral aqueduct and anterior to the superior and inferior colliculi

A

Mesencephalic

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16
Q

This nucleus of termination is in the medulla oblongata

A

Spinal

17
Q

The spinal nucleus is continuous with what?

A

Substantia gelatinosa of Roland

18
Q

The spinal nucleus of trigeminal is also for what 4 CN nerves?

A

Trigeminal (duh)
Facial
Glossopharyngeal
Vagus

19
Q

What is another term for peripheral processes?

A

Dendrites

20
Q

The dendrites divide into what 3 divisions?

A

Ophthalmic
Maxillary
Mandibular

21
Q

This division is the upper, smallest, and purely sensory

A

Ophthalmic

22
Q

This nerve is intermediate in size, position, and purely sensory

A

Maxillary

23
Q

This division is the largest and mixed

A

Mandibular

PNS (23 decks)

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