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PNS > Trigeminal Nerve - Overview > Flashcards

Trigeminal Nerve - Overview Flashcards

1
Q

The trigeminal nerve is the _______ of the cranial nerves.

A

largest

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2
Q

The trigeminal nerve is a ________ nerve. (sensory/motor)

A

mixed

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3
Q

The trigeminal nerve is known as what?

A

The great sensory nerve of the face.

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4
Q

What are the three nuclei of termination associated with the trigeminal nerve?

A

Main sensory nucleus
Spinal nucleus
Trigeminal mesencephalic nucleus

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5
Q

The trigeminal has how many nucleus/nuclei of origin?

A

one

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6
Q

What is the nucleus/nuclei of origin associated with the Trigeminal nerve?

A

Trigeminal motor nucleus

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7
Q

What type of information does the main sensory neuron receive?

A

Touch, vibration, joint proprioception

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8
Q

What type of information does the spinal nucleus receive?

A

Pain and temperature

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9
Q

What is the peripheral ganglion associated with the trigeminal nerve?

A

Trigeminal (semilunar) ganglion

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10
Q

What are the three branches of the trigeminal nerve?

A

Ophthalmic
Maxillary
Mandibular

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11
Q

Which is the only CNS nucleus to contain cell bodies of 1st order primary sensory neurons?

A

Trigeminal mesencephalic nucleus.

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12
Q

Proprioceptive information from muscles of mastication travel here:

A

mesencephalic nucleus

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13
Q

Axons from the motor nucleus leave the CNS and travel though the ______ and are carried in what branch to supply muscles of mastication?

A

Trigeminal ganglion

mandibular branch

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14
Q

The motor nucleus receives information from? (6)

A 
Cerebral cortex (B.A. - 4)
Reticular formation
Red nucleus
Tectum
Medial longitudinal fasciculus
mesencephalic nucleus (monosynaptic reflex)
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15
Q

The apparent origin of the trigeminal nerve is ____?

A

Lateral aspect of the pons.

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16
Q

Where is the trigeminal ganglion found?

A

The trigeminal (Merkel’s) cave

17
Q

What is the trigeminal (Merkel’s) cave?

A

A pouch of dura mater that contains the trigeminal ganglion.

18
Q

Describe the path of the trigeminal nerve up to the trigeminal ganglion.

A

Nerve travels anteriorward over the patrous part of the temporal bone and enters Meckel’s cave & trigeminal ganglion.

19
Q

What happens after the nerve exits the trigeminal ganglion?

A

It divides into there branches: ophthalmic, maxillary, mandibular.

PNS (15 decks)

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