StudyGuideCh3 - Study Guide Ch. 3 1. What is the most...

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Study Guide Ch. 3 1. What is the most important unit of the nervous system? Define it. Neuron- an individual nerve cell 2. List the four components of the neuron. Cell body, nucleus, dendrites, and axons 3. Read table 3.1. List the six neurotransmitters and their main function or importance. Acetylcholine- contracts the body’s large muscles – also plays a part in memory and is thought to regulate dreaming Dopamine- controls large muscle movements – also plays a part in the brain’s pleasure and reward systems Serotonin- believed to regulate sleeping, dreaming, appetite, anxiety, depression, and the inhibition of violence Norepinephrine- vigilance and attention Glutamate- most widespread excitatory neurotransmitter Neuropeptides- broadly influence the action of other neurotransmitters, also known as neuromodulators 4. Differentiate the central nervous system from the peripheral nervous system. The central nervous system includes the brain and spinal cord, while the peripheral nervous
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StudyGuideCh3 - Study Guide Ch. 3 1. What is the most...

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