Definition of Spnal
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.
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.
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.
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.
- Webster's Unabridged Dictionary (1913)
- of or related to the spine
- The Nuttall Encyclopedia
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