| syssarcosic | Relating to or characterised by syssarcosis. Synonym: syssarcosic. (05 Mar 2000) |
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| syssarcosis | <anatomy> The junction of bones by intervening muscles. Origin: NL, fr. Gr, fr. To unite by flesh, to cover over with flesh; with +, flesh. Source: Websters Dictionary (01 Mar 1998) |
| syssarcotic | Relating to or characterised by syssarcosis. Synonym: syssarcosic. (05 Mar 2000) |
| systaltic | <physiology> Capable of, or taking place by, alternate contraction and dilatation; as, the systaltic action of the heart. Origin: L. Systalticus drawing together, Gr, from to draw together. Cf. Sustaltic, Systole. Source: Websters Dictionary (01 Mar 1998) |
| system | <biology, ecology> A group of related natural objects or forces within a defined zone, a regularly interacting or interdependent group of items forming a unified whole, a more general and less rigorous term than ecosystem. (09 Oct 1997) |
| system of macrophages | A widely distributed collection of both free and fixed macrophages derived from bone marrow precursor cells by way of monocytes; their substantial phagocytic activity is mediated by immunoglobulin and the serum complement system. In both connective and lymphoid tissue, they may occur as free and fixed macrophages; in the sinusoids of the liver, as Kupffer cells; in the lung, as alveolar macrophages; and in the nervous system, as microglia. Synonym: system of macrophages. (05 Mar 2000) |
| system, parasympathetic nervous | : A part of nervous system that slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles. The parasympathetic nervous system together with the sympathetic nervous system (that accelerates the heart rate, constricts blood vessels, and raises blood pressure) constitute the autonomic nervous system. (12 Dec 1998) |
| system, sympathetic nervous | A part of nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. The sympathetic nervous system together with the parasympathetic nervous system (that slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles) constitute the autonomic nervous system. (12 Dec 1998) |
| systema | Synonym: system. See: system, apparatus. Origin: L. Fr. G. Systema (05 Mar 2000) |
| systema alimentarium | An alternate term for digestive system. (05 Mar 2000) |
| systema digestorium | The organs that are responsible for getting food into and out of the body and for making use of food to keep the body healthy. These include the mouth, oesophagus, stomach, liver, gallbladder, pancreas, small intestine, colon, and rectum. (12 Dec 1998) |
| systema lymphaticum | <anatomy> The tissues and organs (including the bone marrow, spleen, thymus and lymph nodes) that produce and store cells that fight infection and the network of vessels that carry lymph. (12 May 1997) |
| systema nervosum | The entire integrated system of nerve tissue in the body: the brain, brainstem, spinal cord, nerves and ganglia. (16 Dec 1997) |
| systema nervosum autonomicum | An alternate term for autonomic nervous system. (05 Mar 2000) |
| systema nervosum centrale | An alternate term for central nervous system, central nervous system. (05 Mar 2000) |