Trigeminal nerve general info

Question 1

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

Answer 1

True

Question 2

What kind of fibers are carried by CN V?

Answer 2

motor and sensory, but many more sensory

Question 3

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

Answer 3

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

Question 4

What are the three nuclei of termination for CN V?

Answer 4

Main sensory nucleus, spinal nucleus, and trigeminal mesencephalic nucleus

Question 5

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

Answer 5

spinal nucleus

Question 6

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

Answer 6

Trigeminal mesencephalic nucleus

Question 7

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

Answer 7

Main sensory nucleus

Question 8

What is the nucleus of origin for CN V?

Answer 8

Trigeminal motor nucleus

Question 9

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

Answer 9

Trigeminal (semilunar) ganglion

Question 10

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

Answer 10

sensory

Question 11

What are the three peripheral branched of CN V?

Answer 11

ophthalmic, maxillary, and mandibular

Question 12

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

Answer 12

peripheral processes

Question 13

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

Answer 13

main trigeminal nucleus or spinal nucleus

Question 14

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

Answer 14

TMJ

Question 15

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

Answer 15

spinal nucleus

Question 16

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

Answer 16

trigeminal ganglion

Question 17

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

Answer 17

true

Question 18

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

Answer 18

trigeminal ganglion

Question 19

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

Answer 19

mandibular branch

Question 20

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

Answer 20

True

Question 21

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

Answer 21

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

Question 22

Where is the apparent origin of the Trigeminal Nerve?

Answer 22

lateral aspect of the pons

Question 23

What other CN shares an apparent origin with CN V?

Answer 23

none

Question 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?

Answer 24

Trigeminal cave or Meckel’s cave

Question 25

Where is the trigeminal ganglion located?

Answer 25

Trigeminal (Meckel’s) cave

Question 26

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

Answer 26

trigeminal ganglion