|Medical Dictionary - Dictionary of Medicine and Human Biology|
Exostoses occurring along the course of the small metacarpal and metatarsal bones of the horse. See splint.
In chemistry, the cleavage of a covalent bond, fragmenting the molecule involved.
Abbreviation for a gene that leads to suppression and mutation of alleles that are unstable.
Caused by waste material. [G. spodos, ashes, + -gen, producing]
The pattern of ash residue formed by microincineration of a minute tissue specimen, usually a thin section. [G. spodos, ashes, + gramma, a drawing]
SYN: microincineration. [G. spodos, ashes, + grapho, to write]
Removing or carrying off waste materials from the body. [G. spodos, ashes, + phoros, bearing]
Relating to spondee.
A bisyllabic word with generally equivalent stress on each of the two syllables; used in the testing of speech hearing. [Fr.]
Pain in the spine. [spondyl- + G. algos, pain]
Inflammation of the intervertebral articulations. [spondyl- + G. arthron, joint, + -itis, inflammation]
Relating to spondylitis.
Inflammation of one or more of the vertebrae. [spondyl- + G. -itis, inflammation] ankylosing s. arthritis of the spine, resembling rheumatoid arthritis, that may progress to bony ankylosis with lipping of vertebral margins; the disease is more common in the male, often with the rheumatoid factor absent and the HLA antigen present. There is a striking association with the B27 tissue type and the strong familial aggregation suggest an important genetic factor, perhaps inherited as an autosomal dominant [MIM*106300]; the mechanism, however, remains obscure. SYN: Marie-Strümpell disease, rheumatoid s., Strümpell-Marie disease. s. deformans arthritis and osteitis deformans involving the spinal column; marked by nodular deposits at the edges of the intervertebral disks with ossification of the ligaments and bony ankylosis of the intervertebral articulations, it results in a rounded kyphosis with rigidity. SYN: Bechterew disease, poker back, Strümpell disease (1) . rheumatoid s. SYN: ankylosing s.. tuberculous s. tuberculous infection of the spine associated with a sharp angulation of the spine at the point of disease. SYN: Pott disease.
The vertebrae. [G. spondylos, vertebra]
Forward movement of the body of one of the lower lumbar vertebrae on the vertebra below it, or upon the sacrum. SYN: spondyloptosis. [spondylo- + G. olisthesis, a slipping and falling]
Relating to or marked by spondylolisthesis.
Degeneration or deficient development of a portion of the vertebra; commonly involves the pars interarticularis, which can result in a spondylolithesis. [spondylo- + G. lysis, loosening]
Softening of vertebrae with multiple collapsed vertebral bodies. [spondylo- + G. malakia, softness]
Any disease of the vertebrae or spinal column. [spondylo- + G. pathos, suffering]
SYN: spondylolisthesis. [spondylo- + G. ptosis, a falling]
Suppurative inflammation of one or more of the vertebral bodies. [spondylo- + G. pyosis, suppuration]
Embryologic failure of fusion of the vertebral arch. See spina bifida. [spondylo- + G. schisis, fissure]
Ankylosis of the vertebra; often applied nonspecifically to any lesion of the spine of a degenerative nature. [G. spondylos, vertebra] cervical s. s. affecting the cervical vertebrae, intervertebral discs, and surrounding soft tissue. hyperostotic s. SYN: diffuse idiopathic skeletal hyperostosis.
SYN: spinal fusion. [spondylo- + G. syndesis, binding together]
Relating to the vertebra and the thorax.
Relating to a vertebra.
1. Absorbent material, such as gauze or prepared cotton, used to absorb fluids. 2. A member of the phylum Porifera, the cellular endoskeleton of which is a source of commercial sponges. SYN: spongia. [G. spongia] absorbable gelatin s. a sterile, absorbable, water-insoluble gelatin base s., used to control capillary bleeding in surgical operations; it is left in situ and is absorbed in from 4 to 6 weeks. Bernays s. a compressed disk of aseptic cotton that swells when moistened; used in packing cavities. compressed s. a s. that is impregnated with a thin mucilage of acacia, wrapped with twine to the desired shape, and then dried; used to dilate sinuses, the os uteri, etc. by absorbing moisture after insertion. SYN: s. tent. contraceptive s. a resilient, hydrophilic s. of polyurethane foam impregnated with a spermicide; contraception is achieved by action of the spermicide; no longer manufactured in the U.S.
SYN: sponge. [G.]
Sponge, spongelike, spongy. [G. spongia]
A neuroepithelial, filiform ependymal cell extending across the entire thickness of the wall of the brain or spinal cord, i.e., from the internal to the external limiting membrane; spongioblasts become neuroglial and ependymal cells. SEE ALSO: glioblast. [spongio- + G. blastos, germ]
1. A glioma consisting of cells (elongated, spindle-shaped, and sometimes pleomorphic, with one or two fibrillary processes) that resemble the embryonic spongioblasts, occurring normally around the neural canal of the human embryo; it grows relatively slowly, usually originating in the brainstem, optic chiasm, or infundibulum, and infiltrates adjacent structures or causes compression of the third and fourth ventricles. Spongioblastomas were formerly subclassified as s. polare and s. unipolare. 2. Obsolete term for glioblastoma multiforme. [spongioblast + G. -oma tumor]
1. A neuroglial cell. 2. A cell in the zona fasciculata of the adrenal containing many droplets of lipid material which, after staining with hematoxylin and eosin, show pronounced vacuolization. [spongio- + G. kytos, cell]
SYN: spongy. [spongio- + G. eidos, resemblance]
Resembling or characteristic of a sponge. [L. spongiosus]
Inflammatory intercellular edema of the epidermis.
Inflammation of the corpus spongiosum, or corpus cavernosum urethrae.
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