Depolarization of a neuron occurs because _____.

The _____ is the part of the brain that links the nervous and endocrine systems.

The longitudinal fissure divides the _____.

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 _____.