Trigeminal Pathways-CNV Flashcards Preview

Neuro Block 2-RG > Trigeminal Pathways-CNV > Flashcards

Flashcards in Trigeminal Pathways-CNV Deck (13)
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1
Q

This nucleus is responsible for motor function of the trigeminal nerve

A

motor nucleus

2
Q

This nucleus is responsible for touch, vibration, and proprioceptive functions of the trigeminal nerve

A

main sensory nucleus

3
Q

This nucleus is responsible for pain and temperature sensation as well as trigeminalo-mediated relfexes of the trigeminal nerve

A

spinal trigeminal nucleus

4
Q

This is an example of a trigeminal reflex

A

blink reflex

5
Q

This portion of the spinal trigeminal nucleus is responsible for trigeminally-mediated reflexes

A

anterior portion

6
Q

This nucleus is responsible for proprioception of the gums/jaw

A

mesencephalic

7
Q

What is anatomically unique about the mesencephalic nucleus?

A

it is located in the CNS (only place where 1˚ afferents are located within the CNS)

8
Q

Where does the central process of the mesencephalic nucleus terminate?

A

trigeminal motor nucleus

9
Q

Where do the axons of the main sensory nucleus terminate on the thalamus?

A

ventroposterior medial thalamus (VPM)

10
Q

What type of sensation is carried bilaterally in the trigeminal nerve?

A

main sensory nucleus information from the oral cavity

11
Q

What nucleus does not produce axons that cross the midline?

A

mesencephalic

12
Q

How many synapses are involved in the jaw jerk reflex

A

1 (!)

13
Q

Damage to one side of the trigeminal motor nucleus causes what deficit?

A

deviation on ipsilateral side

–>motor neurons do not cross midline