cell body

noun

Definition of cell body 

: the nucleus-containing central part of a neuron exclusive of its axons and dendrites that is the major structural element of the gray matter of the brain and spinal cord, the ganglia, and the retina — see neuron illustration

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Second, the electrical signals those cells generate flow through neurons in one direction: branching dendrites receive the pulse, pass it to the main cell body and then along their axons—long projections that can connect distant parts of the brain. Marissa Fessenden, Smithsonian, "Revel in These Wondrous Drawings by the Father of Neuroscience," 23 Jan. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cell body.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of cell body

1878, in the meaning defined above

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The first known use of cell body was in 1878

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More Definitions for cell body

cell body

noun

Medical Definition of cell body 

: the nucleus-containing central part of a neuron exclusive of its axons and dendrites that is the major structural element of the gray matter of the brain and spinal cord, the ganglia, and the retina

called also perikaryon, soma

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