Test Deck

Question 1

What are the three branches of CN V?

Answer 1

Ophthalmic
Maxillary
Mandibula

Question 2

What regions of the face does the ophthalmic branch of CN V provide sensation to?

Answer 2

Cornea
Medial Canthus of the eye
Nasal planum
Nasal septal mucosa

Question 3

What regions of the face does the maxillary branch of CN V provide sensation to?

Answer 3

Maxillary area
Lateral canthus of the eye

Question 4

What regions of the face does the mandibular branch of CN V provide sensation to?

Answer 4

Mandibular area

Question 5

Where do the cell bodies of the sensory portion of CN V reside?

Answer 5

Trigeminal ganglion

Question 6

The trigeminal ganglion is located within what bony structure?

Answer 6

The trigeminal canal of the petrous temporal bone

Question 7

By what peduncle do the afferent trigeminal nerves reach the Pons?

Answer 7

Middle cerebellar peduncle

Question 8

Which nucleus within the Pons, do the sensory fibers of CN V terminate on?

Answer 8

Pontine sensory nucleus

Question 9

The pontine sensory nucleus is thought to primarily be concerned with which sensation?

Answer 9

Mechanoreception (touch and pressure)

Question 10

The cranial aspect of the nucleus of the spinal tract of CN V is primarily concerned with which sensation?

Answer 10

Nociception (pain and temperature)

Question 11

Where do the afferent axons from the pontine sensory nucleus next travel to?

Answer 11

Local CN nuclei (e.g. CN VII for palpebral)
Decussates and travels to the thalamus

Question 12

Axons from the pontine sensory nucleus travel to the thalamus through what tract?

Answer 12

Trigeminal lemnicus
AKA the quintothalamic tract