Where do the motor axons of the accessory (XI) nerve originate? from nuclei in t

Question

Where do the motor axons of the accessory (XI) nerve originate?

from nuclei in the midbrain

Loss of taste in the anterior region of the tongue may be an indication of damage to which cranial nerve?

vagus X

A block of which nerve would provide anesthesia to the lower teeth and chin?

accessory (XI)

nerve

vagus (X) nerve

The sympathetic division of the autonomic nervous system (ANS) is often referred to as the _______________________.

visceral division

All sympathetic and parasympathetic preganglionic neurons release _____________.

This division of the ANS has acetylcholine (ACh) as the neurotransmitter at the autonomic ganglion between the pregangionic and postganglionic nerve fibers.

This system of nerves make possible the normal motility and secretory functions of the gastrointestinal tract. What is it called?

Propranolol is a beta blocker that affects hypertension. Which division does it impact the most?

Explanation / Answer

1. The correct option is from nuclei in the spinal cord.

2. facial VII

3. mandibular branch of the trigeminal nerve

4. Vagus nerve.

5. Acetylcholine

6. both sympathetic and parasympathetic.

7. Myenteric plus

8. sympathetic

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