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12 Cards in this Set
- Front
- Back
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synapse
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small gap connecting transmitters
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synaptic transmission
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relaying of info from one neuron to another
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neurotransmitters
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biochemical substances that stimulate other neurons
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acetylcholine
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found in nervous system, deterioration of neurons secreting this transmitters can cause alzheimers. regulates the use of muscles and organs
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GABA
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most common inhibitory transmitter. can cause anxiety if levels are low
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dopamine, norepinephrine, serotonin
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1. high levels can cause schizo/low-parkinsons
2. low= depression |
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endorphins
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modify the activity of post synaptic nerves (neuromodulator). controls emotion behavior and pain
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nodes of ranvier
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breaks between myelinated neurons
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plasticity
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changes in the performance of the brain
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Mark Rosenzweig
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rat studies. interactions=bigger cortex
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neurogenesis
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the production of new brain cells from naturally occuring stem cells
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myelinated neurons
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myelin sheath causes neurons to transmit action potential faster
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