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The Brain

Neurotransmitters
Home | The Brain | Neurons | Neurotransmitters | Cerebrum | Lobes | Cerebellum | Brain Stem | Limbic System

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Neurotransmitters are specialized chemical messengers that send a message from one nerve cell to another.
 
Each neurotransmitter plays a different role in the body.
 
However certain man made chemicals can replace or block these chemical messengers. The chemicals are either called agonists, or antagonists. Agonists mimic the desired neurotransmitter allowing it to be read as such. The most common form is the drug morphine, a pain killer, taking the place of endorphins, the body's natural anesthetic. Antagonists do the opposite, the do not allow neurotransmitters to be read at all.
 
 
 
A Few Types of Neurotransmitters

Neurotransmitter
Involved with...
Acetylcholine

Learning

Memory

Norepinephrine
Arousal
 
Wakefulness
Dopamine
Movement
 
Motivation
 
Emotion
Serotonin
Emotions
 
Behavior
 
Thought
GABA (gamma aminobutyric acid)
Tells body to slow down

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Neurotransmitters in between an dendrite and axon terminal.