Remember to return and review this study:

Nervous System

Neuron

Axon

Dendrite

Synapse . . . . a Video

Neurotransmitter . . . . a Video

Receptors

Prozac

Melatonin

Serotonin . . . . . from Answers.com

Tryptophan

Myelin Sheath Images

Node of Ranvier an Animation . . . added May '07

I would like to say something here about what causes a lot of our health problems.

Presynaptic nerve Images

Postsynaptic nerve Images

Neurontransmission

Schwann Cells

Feb. '07
Ligand gated channel

Feb. 14, '07
What next ? Artifical neurons . . . . on Yahoo Search

Glia cell . . . added June '07

Food for Thought. . . . added Feb. '09 . . . Walnuts Search on Google