SPINALS
SPINAL
Spi"nal, a. Etym: [L. spinalis, fr. spina the spine: cf. F. spinal.
See Spine.]
1. (Anat.)
Definition: Of, pertaining to, or in the region of, the backbone, or
vertebral column; rachidian; vertebral.
2. Of or pertaining to a spine or spines. 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 vertebræ
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.
Source: Webster’s Unabridged Dictionary 1913 Edition