neurotransmitters

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1
Synaptic Gap
a tiny space between the axon terminal of one neuron and the dendrite of an adjoining neron
2
Synapse
space between two neurons
3
Neurotransmitter
a chemical messenger that travels across the synapse from one neuron to the next and influences wheter a neuron will generat and action potential
4
Presynaptic neuron
the neuron that sends the signal across the gap
5
Postsynaptic neuron
a neuron on the receiving end of a synapse
6
Excitatory effect
a neurotransmitter effect that makes it more likely that the receiving neuron will generate an action potential
7
Inhibitory effect
a neaurotransmitter effect taht makes it less likely that the receiving neuron wil generate an action potential(impulse)
8
Synaptic buttons
a small structure like a sac that stores chemicals called neurotransmitters
9
Acetylcholine
a neurotransmitter that triggers muscle contraction and affects learning and memory
10
Norepinephrine
neurotransmitter that is involved in arousal and the fight-or-flight system (also mood, sleep, and learning)
11
Dopamine
neurotransmitter involved in regulating emotions, speficically rewarding sensations. Also involved in movement, with links to Parkinson's disease.
12
Serotonin
affects mood, hunger,sleep, and arousal. undersupply linked to depression
13
Endorphins
neurotransmitters that give one a feeling of well-being, euphoria or eliminate pain
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