Chemical synapse schema - neurotransmitters

Antidepressant drugs are designed to change the concentration of certain neurotransmitters in the brain.
{{Information |Description={{en|1=Drawing illustrating the process of synaptic transmission in neurons, cropped from original in an NIA brochure.}} |Source=http://www.nia.nih.gov/Alzheimers/Publications/UnravelingtheMystery/ |Author=user:Looie496 created