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Unformatted text preview: covers electrical lines), derived from glial cells, white matter in brain Gray matter gets its color from cell bodies, dendrites, and unmyelinated axons Synapse place at which the transmission of information between neurons occurs Grade Potential voltage change that occurs when the neural membrane receives a signal from another cell, their strength diminishes as they travel along the cell membrane away from the source of the stimulation (ripples on a pond grow smaller with distance from a tossed stones point of impact) Action Potential temporary shift in the polarity of the cell membrane which leads to the firing of a neuron, all or nothing quality (pulling the trigger of a gun will fire the same regardless how hard you pull) Neurotransmitters chemicals that transmit information from one neuron to another (synaptic neurons) The Endocrine System The Peripheral Nervous System The Central Nervous System Genetics and Evolution...
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- Spring '07