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Flashcards in Trigeminal nerve general info Deck (26)
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1

T/F: the trigeminal nerve is the largest of the cranial nerves

True

2

What kind of fibers are carried by CN V?

motor and sensory, but many more sensory

3

T/F: CN V is known as the nerve of facial expression

False; CN V is the "great sensory nerve of the face."

4

What are the three nuclei of termination for CN V?

Main sensory nucleus, spinal nucleus, and trigeminal mesencephalic nucleus

5

Which terminal nucleus of CN V deals with pain and temperature?

spinal nucleus

6

Which terminal nucleus of CN V is located in the midbrain?

Trigeminal mesencephalic nucleus

7

Which terminal nucleus of CN V receives info like touch, vibration, and joint proprioception?

Main sensory nucleus

8

What is the nucleus of origin for CN V?

Trigeminal motor nucleus

9

What is the name of the only peripheral ganglion associated with CN V?

Trigeminal (semilunar) ganglion

10

What kind of cell bodies are contained in the Trigeminal (Semilunar) ganglion?

sensory

11

What are the three peripheral branched of CN V?

ophthalmic, maxillary, and mandibular

12

In the Sensory pathway of CN V, what processes come from the face to the trigeminal ganglion?

peripheral processes

13

Where do (sensory) central processes from the trigeminal ganglion go after entering the CNS?

main trigeminal nucleus or spinal nucleus

14

What joint does CN V especially deal with in regard to proprioception?

TMJ

15

What sensory nucleus of CN V is the lateral spinothalamic tract most associated with?

spinal nucleus

16

What ganglion do dendrites from the periphery pass to on their way to the mesencephalic nucleus?

trigeminal ganglion

17

T/F: CN V has the only sensory neurons with cell bodies located in the CNS

true

18

Axons from the motor nucleus of CN V leave the CNS and travel through which ganglion?

trigeminal ganglion

19

After leaving the CNS, motor fibers from CN V are carried through which division to supply muscles of mastication?

mandibular branch

20

T/F: the mandibular branch is the branch of CN V that carries ANY motor fibers.

True

21

T/F: the motor nucleus of CN V only receives info from the cerebral cortex.

False; it also receives info from the reticular formation, red nucleus, tectum, MLF and mesencephalic nucleus

22

Where is the apparent origin of the Trigeminal Nerve?

lateral aspect of the pons

23

What other CN shares an apparent origin with CN V?

none

24

As CN V leaves its origin, it travel anterior-ward overthe petrous part of the temporal bone and enters a pouch of dura. What are the two names for that pouch?

Trigeminal cave or Meckel's cave

25

Where is the trigeminal ganglion located?

Trigeminal (Meckel's) cave

26

Where do the three branches of CN V (ophth, max, and mand) arise from?

trigeminal ganglion