Exam 21: Peripheral Nervous System

The trochlear nerve stimulates movement of the eye.

Explain how the nerve plexuses make the nervous system more efficient.

The largest nerve of the body, the sciatic nerve, has its source in the sacral plexus.

Which of the following cranial nerves is responsible for movements of the tongue?

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