a: Dopamine ~
b: a carrier pigeon for the brain
What: "The nerve cells in the Substantia Nigra produce a substance called dopamine. Dopamine is like a carrier pigeon for the brain. It takes messages from one part of the brain to another, telling it how to control movements in the body."
Useful?
Writer: Not Stated
LCC:
Where:
Date: Oct 29 2013 11:00 AM
# 4337 Critique Analogy