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Unformatted text preview: Myelin: A fatty layer coating some axons Neurotransmitters Chemicals that alter activity in neurons; brain chemicals Receptor site: Area on the surface of neurons and other cells that is sensitive to neurotransmitters or hormones Types of Neurotransmitters Acetylcholine: Activates muscles Dopamine: Muscle control Serotonin: Mood and appetite control Neural Regulators Neuropeptides: Regulate activity of other neurons Enkephalins: Relieve pain and stress; similar to endorphins Endorphins: Released by pituitary gland; also help to relieve pain Placebos raise endorphin levels Neuroplasticity Capacity of our brains to change in response to experience Neural Networks Central nervous system (CNS): Brain and spinal cord Peripheral nervous system: All parts of the nervous system outside of the brain and spinal cord...
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- Spring '10