Spinal cord

Definition of Spinal cord

the great nervous cord extending backward from the brain along the dorsal side of the spinal column of a vertebrate animal, and usually terminating in a threadlike appendage called the filum terminale; the spinal, or vertebral, marrow; the myelon. The nervous tissue consists of nerve fibers and nerve cells, the latter being confined to the so-called gray matter of the central portions of the cord, while the peripheral white matter is composed of nerve fibers only. The center of the cord is traversed by a slender canal connecting with the ventricles of the brain.

See also: Spinal

Related Words

central nervous system, cerebrospinal fluid, CNS, funiculus, Golgi cell, Golgi's cell, medulla spinalis, neural structure, spinal fluid, spinal vein, systema nervosum centrale, vena spinalis
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