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22 Cards in this Set
- Front
- Back
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glia |
structural support and insulation |
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neurons |
communication with other cells |
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soma |
cell body |
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dendrites |
receives signals |
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axons |
transmit signals away |
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terminal buttons |
secrete neurotransmitters |
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synapse |
junction where information is transmitted |
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ions to remember? |
sodium and potassium (Keep potassium, NAH, I don't want sodium) |
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what is the resting potential of a neuron? |
-70 milovalts |
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what is the synaptic cleft? |
the gap between neurons |
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what is a neurotransmitter? |
chemical that transmits information from one neuron to another |
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what does PSP stand for? |
postsynaptic potential
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what is postsynaptic potential? |
a voltage change at a receptor site on a postsynaptic cell membrane |
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excitatory PSPs _______ likelihood of firing |
increases |
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inhibitory PSPs _______ likelihood of firing |
decreases |
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acetylcholine |
movement |
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serotonin |
sleep/wakefulness, depression |
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norepinephrine |
depression |
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dopamine |
schizophrenia, reward system |
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_________ and __________ changes underlie effects of cocaine and amphetamines |
dopamine and norepinephrine |
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____________ influenced by sedatives and alcohol |
GABA |
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which neurotransmitters play a role in the effects of narcotics? |
opiate receptors and dopamine |
