| systematic | 1. <biology> Pertaining or according to a system. 2. <study> Systematics is the science of naming and classifying organisms in regard to their natural relationships, deals with populations, species and higher taxa. See: taxonomy. Origin: Gr. Systematikos (09 Jan 1998) |
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| systematic anatomy | A description of, especially a treatise describing, physical structure, more particularly that of man. Synonym: systematic anatomy. (05 Mar 2000) |
| systematic desensitization | A type of behaviour therapy for eliminating phobias or anxieties: the patient and therapist construct a list of imagined scenes eliciting the phobia, ranked from least to most anxiety-producing; the patient then is trained in deep muscle relaxation, and is repeatedly asked to imagine himself in the presence of the least anxiety-producing scene on the list until he feels fully relaxed while doing so; the procedure is repeated for each scene on the list until the patient develops the capacity to feel relaxed with any of the anxiety-producing scenes; real life scenes are then substituted for the imagined scenes. Synonym: reciprocal inhibition. (05 Mar 2000) |
| systematic name | As applied to chemical substances, a systematic name is composed of specially coined or selected words or syllables, each of which has a precisely defined chemical structural meaning, so that the structure may be derived from the name. Water (trivial name) is hydrogen oxide (systematic). The systematic name of histamine (a semisystematic name) is imidazolethylamine, which indicates that a radical of imidazole replaces one hydrogen atom of ethylamine, which in turn is an ethyl group attached to an amine group. Dimethyl sulfoxide states that two methyl radicals are attached to a sulfur atom that holds an oxygen atom. Carbolic acid (trivial name) or phenol (semisystematic name) are, systematically, phenyl hydroxide or hydroxybenzene. See: semisystematic name. (05 Mar 2000) |
| systematical | 1. Of or pertaining to system; consisting in system; methodical; formed with regular connection and adaptation or subordination of parts to each other, and to the design of the whole; as, a systematic arrangement of plants or animals; a systematic course of study. "Now we deal much in essays, and unreasonably despise systematical learning; whereas our fathers had a just value for regularity and systems." (I. Watts) "A representation of phenomena, in order to answer the purposes of science, must be systematic." (Whewell) 2. Proceeding according to system, or regular method; as, a systematic writer; systematic benevolence. 3. Pertaining to the system of the world; cosmical. "These ends may be called cosmical, or systematical." (Boyle) 4. <medicine> Affecting successively the different parts of the system or set of nervous fibres; as, systematic degeneration. Systematic theology. See Theology. Origin: Gr., cf. F. Systematique. Source: Websters Dictionary (01 Mar 1998) |
| systematised delusion | A delusion that is logically constructed from a false premise and embraces a specific sector of the patient's life. (05 Mar 2000) |
| systematised nevus | A developmental dysplasia of the skin; extensive, patterned, and usually unilateral. (05 Mar 2000) |
| systematization | The arrangement of ideas into orderly sequence. (05 Mar 2000) |
| systematize | To reduce to system or regular method; to arrange methodically; to methodize; as, to systematize a collection of plants or minerals; to systematize one's work; to systematize one's ideas. "Diseases were healed, and buildings erected, before medicine and architecture were systematized into arts." (Harris) Origin: Cf. F. Systematiser. Cf. Systemize. Source: Websters Dictionary (01 Mar 1998) |
| systematology | <study> The doctrine of, or a treatise upon, systems. Origin: Gr, system. Source: Websters Dictionary (01 Mar 1998) |
| Systeme International d'Unites | See: International System of Units. (05 Mar 2000) |
| systemic | <anatomy> Pertaining to or affecting the body as a whole. (18 Nov 1997) |
| systemic anaphylaxis | The immediate response, involving smooth muscles and capillaries throughout the body of a sensitised individual, that follows intravenous (and occasionally intracutaneous) injection of antigen (allergen). See: anaphylactic shock. Synonym: systemic anaphylaxis. (05 Mar 2000) |
| systemic anatomy | Anatomy of the systems of the body; an approach to anatomical study organised by organ systems, e.g., the cardiovascular system, emphasizing an overview of the system throughout the body; distinguished from regional anatomy. (05 Mar 2000) |
| systemic autoimmune diseases | A group of connective tissue disease's characterised by the presence of autoantibodies responsible for immunopathologically mediated tissue lesions; systemic lupus erythematosus is the prototype. (05 Mar 2000) |
| Galton's system of classification of fingerprints | A system of classification based on the variations in the patterns of the ridges, which are grouped into arches, loops, and whorls (A.L.W. Or arch-loop-whorl system). "Arches are formed when the ridges run from one side to the other of the bulb of the digit, without making any backward turn, but no twist; whorls, when there is a turn through at least one complete circle; they are also considered to include all duplex spirals." The abbreviations used in making a record of fingerprint's are: a, arch; l, loop; w, whorl; i, loop with an inner (thumb side) slope; o, loop with an outer (little-finger side) slope. The ten digits are registered in four groups as follows, distinguished by capital letters: A, the fore, middle, and ring fingers of the right hand; B, the fore, middle, and ring fingers of the left hand; C, the thumb and little finger of the right hand; D, the thumb and little finger of the left hand. See: dermatoglyphics. (05 Mar 2000) |
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| gamma motor system | The reflex arc consisting of small anterior horn cells and neuroma, their small fibres projecting to the intrafusal bundle producing its contraction, which initiates the afferent impulses that pass through the posterior root to the anterior horn cells, inducing a stretch reflex. Synonym: gamma motor neurons, gamma motor system, Granit's loop. (05 Mar 2000) |
| vascular system | The cardiovascular and lymphatic system's collectively. Synonym: circulatory system. (05 Mar 2000) |
| vasomotor system | The neural systems which act on vascular smooth muscle to control blood vessel diameter. The major neural control is through the sympathetic nervous system. (12 Dec 1998) |
| gastric plexuses of autonomic system | The plexus's along the greater and lesser curvatures of the stomach derived from the coeliac plexus; also known as inferior and superior plexus. Synonym: plexus gastrici systematis autonomici. (05 Mar 2000) |
| vegetative nervous system | <anatomy> Neurons that are not under conscious control, comprising two antagonistic components, the sympathetic and parasympathetic nervous systems. The autonomic nervous system regulates key functions including the activity of the cardiac (heart) muscle, smooth muscles (e.g., of the gut), and glands. The autonomic nervous system has two divisions: 1. The sympathetic nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. 2. The parasympathetic nervous system slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles. (03 Jul 1999) |
| ventral nervous system defective | <molecular biology> A Drosophila gene encoding an integral membrane glycoprotein related to amyloidogenic glycoprotein. (12 Jan 1998) |
| genital system | The complex system consisting of the male or female gonads, associated ducts, and external genitalia dedicated to the function of reproducing the species. Synonym: reproductive system. (05 Mar 2000) |
| genitourinary system | The organs concerned in the production and excretion of urine, together with the organs of reproduction. (12 Dec 1998) |
| parasympathetic nervous system | <anatomy, neurology> One of the two divisions of the vertebrate autonomic nervous sytem. Parasympathetic nerves emerge cranially as pre ganglionic fibres from oculomotor, facial, glossopharyngeal and vagus and from the sacral region of the spinal cord. most neurons are cholinergic and responses are mediated by muscarinic receptors. The parasympathetic system innervates, for example: salivary glands, thoracic and abdominal viscera, bladder and genitalia. Compare:. Sympathetic nervous system. (18 Nov 1997) |
| vertebral-basilar system | The arterial complex comprising the two vertebral arteries joining to form the basilar artery, and their immediate branches. (05 Mar 2000) |
| vertebral venous system | Any of four interconnected venous networks surrounding the vertebral column; anterior external vertebral venous plexus, the small system around the vertebral bodies; posterior external vertebral venous plexus, the extensive system around the vertebral processes; anterior internal vertebral venous plexus, the system running the length of the vertebral canal anterior to the dura; posterior internal vertebral venous plexus, the system running the length of the vertebral canal posterior to the dura; the latter two constitute the epidural venous plexus. Synonym: plexus venosus vertebralis, Batson's plexus, vertebral venous plexus. (05 Mar 2000) |
| cartilaginous part of skeletal system | The part of the skeleton composed of cartilage. Synonym: pars cartilaginosa systematis skeletalis. (05 Mar 2000) |
| masticatory system | The organs and structures primarily functioning in mastication: the jaws, teeth with their supporting structures, temporomandibular joint, muscles of mastication, tongue, lips, cheeks, and oral mucosa. Synonym: dental apparatus, masticatory apparatus. (05 Mar 2000) |
| redox system | <enzyme> An enzyme system in the tissues by which oxidation and reduction proceed simultaneously through the transference of hydrogen or of one or more electrons from one metabolite to another. See: oxidation-reduction. Synonym: redox system. (05 Mar 2000) |