Exam 15: Peripheral Nervous System

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

Briefly describe the structure of the spinal nerves.

Most of the optic nerve fibers terminate in the cerebellum.

Skeletal muscles are somatic effectors.

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

Trigeminal neuralgia,or tic douloureux,is characterized by stabbing pain radiating from the eyes.

There are 31 pairs of spinal nerves,all of which consist of both motor and sensory fibers.

The corneal reflex refers to the eye reducing the size of the pupil in response to bright light.

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

Match each term with its description or definition. -group of skeletal muscles that receive axon from one spinal nerve

What would the result be if the phrenic nerve received an impulse from the cervical plexus?

Spinal nerves are _____ fibers.

The sensory cranial nerves include only the:

The vestibulocochlear nerve is sometimes called the acoustic nerve.

Each spinal nerve attaches to the spinal cord by means of two short roots-a ventral root and a dorsal root.

Which is not true of the ventral nerve root?

The peripheral nervous system includes _____ nerves.

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

The spinal nerves are connected to the spinal cord and consist of _____ pairs.

The final efferent organ of the knee jerk reflex is the quadriceps femoris muscle.