| general somatic efferent column | A column of gray matter in the embryo, represented in the adult by the nuclei of the oculomotor, trochlear, abducens, and hypoglossal nerves and by motor neurons of the ventral horn of the spinal cord. (05 Mar 2000) |
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| psychiatric somatic therapies | The biologic treatment of mental disorders (e.g., electroconvulsive therapy), in contrast with psychotherapy. (stone, american psychiatric glossary, 1988, p159) (12 Dec 1998) |
| somatic | 1. Pertaining to or characteristic of the soma or body. 2. Pertaining to the body wall in contrast to the viscera. Origin: Gr. Somatikos (18 Nov 1997) |
| somatic agglutinin | An agglutinin that is formed as the result of stimulation by, and that reacts with, the relatively thermostable antigen(s) in the cell bodies of microorganisms. Synonym: somatic agglutinin. See ABO blood group. (05 Mar 2000) |
| somatic antigen | An antigen located in the cell wall of a bacterium in contrast to one in the flagella (flagellar antigen) or in a capsule (capsular antigen). (05 Mar 2000) |
| somatic arteries | Artery's that arise in the embryo from the dorsal aorta and supply the body wall; they persist almost unchanged as the posterior intercostal, subcostal, and lumbar artery's. (05 Mar 2000) |
| somatic cells | Cells of an animal or plant other than the reproductive cells. (14 Nov 1997) |
| somatic crossing-over | Crossing-over that occurs during the mitosis of somatic cells, in contrast to that which occurs in meiosis. (05 Mar 2000) |
| somatic death | Death of the entire body, as distinguished from local death. (05 Mar 2000) |
| somatic delusion | A delusion having reference to a nonexistent lesion or alteration of some organ or part of the body; sometimes indistinguishable from hypochondriasis. (05 Mar 2000) |
| somatic hybrid | Heterokaryon formed between two somatic cells, usually from different species. See: somatic cell genetics. (18 Nov 1997) |
| somatic layer | The external layer of the lateral mesoderm of the embryo, lying adjacent to the ectoderm and together with it constituting the somatopleure. (05 Mar 2000) |
| somatic mesoderm | That portion of the embryonic mesoderm that is associated with the body wall and is divided from the splanchnic visceral) mesoderm by the coelomic cavity. (18 Nov 1997) |
| somatic mitosis | The ordinary process of mitosis as it occurs in the somatic or body cells, characterised by the formation of the prescribed number of chromosomes, appropriate for the species (in humans the number is 46). (05 Mar 2000) |
| somatic motor neuron | See: motor neuron. (05 Mar 2000) |