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| 1. Nerve Cells / 2. Nerve Cell Functioning / 3. Neuron-to-Neuron Communication / 4. Signal Transmission / 5. Neurotransmitter Recycling | |
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Normal brain functionNerve CellsThe brain is composed of billions of specialized nerve cells called neurons. Neurons receive, process, and transmit messages to the rest of the body that control such functions as speech, vision, and muscle movement as well as thoughts and emotions. |
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