CN V: Trigeminal Nerve

Question 1

Trigeminal Nerve

Answer 1

• Mixed sensory & motor functions.

- innervates muscles of mastication; receives somatosensory information from much of the head.

Question 2

damage to the trigeminal nerve produces ….

Answer 2

usually produces anesthesia, with the extent of the sensory deficit depending on the site of the lesion.

Question 3

tic douloureux (AKA Trigeminal Neuralgia )

Answer 3

TN type 1 (TN1) is characterized by attacks of intense, stabbing pain affecting the mouth, cheek, nose, and/or other areas on one side of the face. TN type 2 (TN2) is characterized by less intense pain, but a constant dull aching or burning pain. Both types of pain can occur in the same individual, even at the same time.

It is considered one of the most painful conditions to affect people.

Question 4

How is tic douloureux treated?

Answer 4

The most commonly prescribed medications are anticonvulsants (seizure medications).

Question 5

Wallenberg Syndrome

Answer 5

• Wallenberg syndrome is a rare condition in which an infarction, or stroke, occurs in the lateral medulla.
• Oxygenated blood doesn’t get to this part of the brain when the arteries that lead to it are blocked. A stroke can occur due to this blockage

Question 6

What is unusual about Wallenberg syndrome

Answer 6

?

Question 7

What is the most common cause of Wallenberg Syndrome

Answer 7

The most common cause of Wallenberg syndrome is stroke in the vertebral or posterior inferior cerebellar arteries of the brain stem (brain stem stroke).