the cord of nerve tissue extending through the spinal canal of the spinal column.
the thick cord of nerve tissue within the spinal canal, which in man gives rise to 31 pairs of spinal nerves, and together with the brain forms the central nervous system

spinal cord n.
The thick, whitish cord of nerve tissue that extends from the medulla oblongata down through the spinal column and from which the spinal nerves branch off to various parts of the body. Also called spinal marrow.
spinal cord

The long, cordlike part of the central nervous system that is enclosed within the vertebral column (spine) and descends from the base of the brain, with which it is continuous. The spinal cord branches to form the nerves that convey motor and sensory impulses to and from the tissues of the body.

spinal cord definition

The thick column of nerve tissue that extends from the base of the brain about two thirds of the way down the backbone. As part of the central nervous system, the spinal cord carries impulses back and forth between the brain and other parts of the body through a network of nerves that extend out from it like branches.


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  • Spinal curvature

    spinal curvature n. Any of several deformities characterized by abnormal curvature of the spine, such as kyphosis or scoliosis.

  • Spinal decompression

    spinal decompression n. The relief of pressure upon the spinal cord as caused by a tumor, cyst, hematoma, or bone, through surgery.

  • Spinal fusion

    spinal fusion n. A surgical procedure in which vertebrae are joined. Also called spondylosyndesis.

  • Spinal-ganglion

    noun 1. a ganglion on the dorsal root of each spinal nerve, containing the cell bodies of sensory nerves. spinal ganglion n. The ganglion of the posterior root of each spinal segmental nerve, containing the cell bodies of the unipolar primary sensory neurons. Also called dorsal root ganglion.

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