nerve net

n. A diffuse network of neurons that conducts impulses in all directions from the area stimulated, forming the nervous system in certain invertebrates such as the cnidarians.

nerve net

a system of interconnecting nerve cells, in the form of a net, found in those groups of invertebrates which lack a CENTRAL NERVOUS SYSTEM, such as COELENTERATES and ECHINODERMS. In other groups the nerve net is almost nonexistent. Conduction is slow across the net and is often in all directions, as the synapses are not usually unidirectional.

单词	nerve net
释义	nerve net nerve net n. A diffuse network of neurons that conducts impulses in all directions from the area stimulated, forming the nervous system in certain invertebrates such as the cnidarians. nerve net nerve net [′nərv ‚net] (invertebrate zoology) A network of continuous nerve cells characterized by diffuse spread of excitation, local and equipotential autonomy, spatial attenuation of conduction, and facilitation; occurs in cnidarians and certain other invertebrates. nerve net nerve net n. A diffuse network of neurons that conducts impulses in all directions from the area stimulated, forming the nervous system in certain invertebrates such as the cnidarians. nerve net a system of interconnecting nerve cells, in the form of a net, found in those groups of invertebrates which lack a CENTRAL NERVOUS SYSTEM, such as COELENTERATES and ECHINODERMS. In other groups the nerve net is almost nonexistent. Conduction is slow across the net and is often in all directions, as the synapses are not usually unidirectional.
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