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Pyramidal nerve cell. Computer artwork of a pyramidal nerve cell from the cerebral cortex of the brain. Pyramidal cells are so named for their triangular cell bodies (lower frame). Each cell body has numerous processes (dendrites), which collect and transmit information from other nerve cells and sensory cells. Each cell body also has an axon (up centre) leading from it, through which it passes information to other cells. The cerebral cortex, also known as the grey matter, is the outer layer of the cerebral hemispheres. It is responsible for the higher brain functions, such as memory, language and consciousness, and for processing sensory input.
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