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12 Cards in this Set

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