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nervous system
| Term | Definition |
|---|---|
| stimulus | a thing or event that evokes a specific functional reaction in an organ or tissue. |
| response | a reaction to something. |
| neuron | a specialized cell transmitting nerve impulses; a nerve cell |
| nerve impusle | a signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes. |
| dendrite | a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body. |
| axon | the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells |
| nerve | (in the body) a whitish fiber or bundle of fibers that transmits impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs. |
| sensory neuron | of or relating to sensation or the physical senses; transmitted or perceived by the senses. |
| interneuron | a neuron that transmits impulses between other neurons, especially as part of a reflex arc |
| motorneuron | a nerve cell forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland. |
| synapse | a synapse is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron. |
Created by:
Primroseeverdeen
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