____ are the basic working unit of the brain; a specialized cell designed to transmit information to other nerve cells, muscle, or gland ce…

____ are when interneurons in the spinal cord relay info to the source of stimuli while simultaneously routing it to the brain .

Reflex arcs are when interneurons in the spinal cord relay info to the ____ .

The central nervous system is made up of the ____.

The ____ nervous system is made up of the brain and spinal cord.

The ____ nervous system consists of nervous tissue and fibers outside the CNS .