A good description of how the neurotransmitters are involved in cell communication. Very good site.

Students explain the differences between the types of graded potentials, and categorize the major neurotransmitters by chemical type and effect.

A description of cellular communication involving neurotransmitters.

Very good introduction to the role that these chemicals play in the nervous system.

Learn here about how nervous tissue is capable of communicating within the nervous system.

Site with a graphic that shows the transmission of a nerve signal during the action potential phase of communication.

Site provides the main function of the neurotransmitters serotonin, norepinephrine, acetylcholine, and glutamate.

Explains how cells send and receive signals. Includes a quiz that can be completed after free registration.