Exam 21: Peripheral Nervous System

In a healthy adult, a well-placed tap on the knee will result in a:

A mixed nerve is one that:

Describe the basic principles of somatic motor pathways.

There is almost no overlap in the dermatomes of the body.

The axons of the olfactory nerve form about 20 small bundles that pierce the cribriform plate to enter the brain.

Which of the following is not associated with the oculomotor nerve?

All of the following cranial nerves have a functional classification of motor except:

Only spinal nerves from the sacrum form the sacral plexus.

Injury to the sixth cranial nerve causes the eye to turn in because of paralysis of the abducting muscle of the eye.

At all stages of development, a positive Babinski reflex always means destruction of pyramidal tract fibers.

Which of the following is not a plexus of the spinal nerves?

Match each cranial nerve with its function or description. -Connects to various external muscles of the eye

All reflexes have their interneurons in the spinal cord.

The most common cause of peripheral neuropathy in the United States is diabetes mellitus.

Match each term with its description or definition. -Group or braid of nerves formed from spinal nerves C1 to C4

If a reflex causes cardiac muscle to contract, it can be either a somatic or an autonomic reflex.

The sensory cranial nerves include only the:

Which of the following is not true of the knee jerk reflex?

The peripheral nervous system includes cranial nerves.

The accessory nerve is unique among the cranial nerves, because none of its fibers originate in the brain.