[W/K] :: Spinal

  Spinal \Spi"nal\, a. [L. spinalis, fr. spina the spine: cf. F.
     spinal. See Spine.]
     1. (Anat.) Of, pertaining to, or in the region of, the
        backbone, or vertebral column; rachidian; vertebral.
        [1913 Webster]
  
     2. Of or pertaining to a spine or spines.
        [1913 Webster]
  
     Spinal accessory nerves, the eleventh pair of cranial
        nerves in the higher vertebrates. They originate from the
        spinal cord and pass forward into the skull, from which
        they emerge in company with the pneumogastrics.
  
     Spinal column, the backbone, or connected series or
        vertebrae which forms the axis of the vertebrate skeleton;
        the spine; rachis; vertebral column.
  
     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.
        [1913 Webster]

  spinal
       adj : of or relating to the spine or spinal cord; "spinal cord";
             "spinal injury"
       n : anesthesia of the lower half of the body; caused by injury
           to the spinal cord or by injecting an anesthetic beneath
           the arachnoid membrane that surrounds the spinal cord
           [syn: spinal anesthesia, spinal anaesthesia]