The brachial plexus is formed from spinal nerves _____.

The splanchnic sympathetic neurons access organs by _____.

Sodium channels on the axon are _____.

Within the cerebellum, the tracts are arranged in a structure called the _____.

The Reticular activating system _____.

Cranial nerve _____ is both sensory and motor.

All voluntary movement is initiated in the _____.

The dorsal root of a spinal nerve carries axons of ______.

Preganglionic autonomic fibers, somatic motor fibers, and postganglionic parasympathetic fibers all release _____.

All of the following describe the parasympathetic system EXCEPT_____.