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A cell is a small building block of life, and groups of cells compose living organisms. Neurons are specialized cells that make up the nervous system, which includes the brain, spinal cord, sensory organs, and nerves in the body. Nerves connect the brain, spinal cord, and sensory organs to the rest of the body. The nervous system controls the body and allows it to communicate with its parts.
Salem Press Encyclopedia of Science, 2023. 3p.
In the latter part of the nineteenth century, there were two competing theoretical approaches toward explaining the composition of the brain. The reticular theory, championed by the Italian scientist Camillo Golgi, proposed that the brain consisted of a dense, netlike structure of nerve wires with no individual cells. The neuron doctrine, as advocated by the Spanish scientist Santiago Ramón y Cajal, asserted that the brain was composed of individual cells, just like other structures of the... więcej
Salem Press Encyclopedia of Health, 2023. 3p.
