nervoussystemlab

nervoussystemlab - Nervous Tissue Nervous Tissue The...

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Nervous Tissue Nervous Tissue The essential function of nervous tissue is communication that depends upon the signaling properties of nerve cells and their processes. Nerve tissue possesses two fundamental properties: irritability, the capacity to react to various physical and chemical agents; and conductivity, the ability to transmit the resulting excitation from one locality to another. Nervous tissue is split into the central nervous system (brain and spinal cord) and the peripheral nervous system. Spinal Cord, slides 24 In the spinal cord the gray matter contains cell bodies arranged in a central H-shaped mass. The gray matter is composed of aggregates of cell bodies known as nuclei . The neurons making up a nucleus generally have similar connections and functions. Peripheral to the gray matter is the white matter , made up largely of myelinated fibers. The white matter is divided into masses of fibers know as the dorsal and ventral horns. Entering the spinal cord at the apex of the dorsal horn of the gray matter is the dorsal
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nervoussystemlab - Nervous Tissue Nervous Tissue The...

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