Somatosensation of the Face, CN V, Trigeminal Nerve

Question 1

The Trigeminal nerve (CN V) is what type of nerve?

Answer 1

Mixed nerve

—carries both sensory and motor fibers

Question 2

The trigeminal nerve carries what sensory modalities for the anterior 2/3 of the head? (6)

Answer 2

1. ) Pain
2. ) Temperature
3. ) Light touch
4. ) discriminative touch
5. ) Concsious Proprioception
6. ) Unconscious proprioception

Question 3

What are the three divisions of the trigeminal nerve?

Answer 3

V1: ophthalmic division

V2: maxillary divison

V3: Mandibular division

Question 4

The V1: ophthalmic division is designated to the area where?

Answer 4

Above the orbit

Question 5

The V2: maxillary division is designated to the area where?

Answer 5

below the orbit and above the mouth

Question 6

The V3: Mandibular division is designated to the area where?

Answer 6

Below the mouth

Question 7

Components of V1,V2,V3 are exclusivley sensory, but V1,V2,V3 also has a motor component…

Answer 7

V1, V2: are exculsively sensory

V3: sensory and motor

Question 8

Sensory components for the trigeminal system are organized how?

Answer 8

three- neuron system

Question 9

What are the parallel pathways assoicated with the trigeminal nerve?

Answer 9

1. ) Trigemino-reticulo-thalamic
2. ) Trigemino-mesencephalic