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| a cell in neural tissue that is specialized for intercellular communication through changes in membrane potential and synaptic connections |
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| automatic reaction to a stimulus |
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| a self-propagating wave of depolarization; also called an action potential |
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| the accumulation of effects, especially those of muscular, sensory, or mental stimuli |
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| a network of interlacing nerves, blood vessels, or lymphatics |
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| the division of the nervous system that functions involuntarily; innervates cardiac muscle, smooth muscle, and glands |
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| carries impulses from the central nervous system to effector organs muscles and glands |
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| a division of the peripheral nervous system; also called the voluntary nervous system |
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| a chemical transmitter substance released by certain nerve endings |
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| carrying to or toward a center |
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| neuron process that carries impulses away from the nerve cell body; efferent process; the conducting portion of a nerve cell |
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| the brain and the spinal cord |
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| ability to transmit an electrical impulse |
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| the branching extension of neurons that carry electrical signals to the cell body; the receptive portion of a nerve cell |
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| the loss of a state of polarity; the loss of a negative charge inside the plasma membrane |
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| a reflex that involves several segments of the spinal cord |
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| the group of nuclei and centers in the cerebrum and diencephalon that are involved with emotional states, memories, and behavioral drives |
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| (transmembrane potential) the potential difference, measured across a cell membrane and expressed in millivolts that results from the uneven distribution of positive and negative ions across the cell membrane |
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| peripheral nervous system(PNS) |
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Definition
| a system of nerves that connects the outlying parts of the body with the central nervous system |
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| the region of communication between neurons |
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