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Unformatted text preview: • Cell is polarized from negative potential inside cell-When signal is received by d endrites • Gates in cell wall open sodium chann els allow sodium to flow in • Cells interior beco m es rapidly depolarized and positively charged • To restore the resting state the sodium chann els quickly close a nd potassium chann el open • Gradually sodium and potassium switch back to places inside the cells • As the sodium and potassium channels are activated it triggers the release of the neurotransmitters into the synapse activating the next neuron 3. Neurotransmitters-Synaptic vessels: chemicals in packets at end of the neuron-Action potential in axon triggers release of the neurotransmitters into the synaptic cle ( spaces in between neurons )...
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- Spring '07
- Psychology, myelin sheath, positive sodium ions, positive potassium ions, negative chloride ions