| 영문 | homeostasis | 한글 | 항상성 |
|---|---|---|---|
| 설명 | 생물체가 끊임없이 외적 및 내적 환경의 변화를 받으면서도 개체로서의 생리적 상태를 안정된 상태로 유지하는 기능. 동적 평형이라고도 한다. 프랑스의 C. 베르나르가 체액의 상태는 환경이 변화하여도 일정하게 유지되는 조절능이 있다고 발표하였는데, 미국의 W.B. 캐논은 이 생각을 더 발전시며 정온동물의 체온의 항상성과 생물의 방어 수단에도 적용시켰다. 예를 들면 혈액 속에 있는 단백질이나 당질 등은 식사의 종류에 거의 영향을 받지 않고 대개 일정한 값을 유지한다. 이와 같은 체내의 안정된 상태를 단순한 물리화학적 평형상태와 구별하기 위하여 설정한 개념이며, 신체의 모든 장기(소화기-순환기-호흡기 등) 의 협조에 의하여 얻어지는데, 그 전체적인 조절은 자율신경계와 내분비계에 의하여 이루어진다. 예를 들면 체온은 자율신경의 작용에 의하여 우리의 의식과는 관계없이 자동적으로 조절된다. 체온 외에도 혈압이나 세포외액의 삼투압, pH, 혈당치 등이 항상 일정하게 유지되고 있다. 자동제어의 능력이 증가함으로써 생물은 그만큼 외부 환경의 영향으로부터 독립한 자유성을 증가시킬 수가 있다. 이러한 개념은 원래 고등동물의 생리학적인 현상을 이해하기 위하여 만들어진 것인데, 그 후 생태학-유전학-발생학 등에도 확대하여 사용되고 있다. |
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| BMD | Bone Mineral Density |
|---|---|
| BMC | blood mononuclear cell; bone marrow cell; bone mineral content |
| BMD | Becker's muscular dystrophy; Boehringer Mannheim Diagnostics; bone marrow depression; bone mineral d... |
| LM | lactic acid mineral [medium]; lactose malabsorption; laryngeal mask; laryngeal muscle; lateral malle... |
| LS-BMD | lumbar spine bone mineral density |
| HOMA | Homeostasis Model Assessment |
|---|---|
| ABMD | Areal bone mineral density |
| BMC | Bone Mineral Content |
| BMD | Bone Mineral Density |
| BMAD | Bone mineral apparent density |
| genetic homeostasis | The tendency of a population to reach a point of genetic equilibrium and resist changes. Origin: Gr. Stasis = stoppage (09 Oct 1997) |
|---|---|
| physiological homeostasis | bernard-Cannon homeostasis |
| waddingtonian homeostasis | The set of processes by which imbalances and other defects in ontogeny are corrected before development is completed. Synonym: ontogenic homeostasis, waddingtonian homeostasis. Origin: homeo-+ G. Rheos, stream, current (05 Mar 2000) |
| homeostasis | <physiology> A tendency to stability in the normal body states (internal environment) of the organism. It is achieved by a system of control mechanisms activated by negative feedback, for example a high level of carbon dioxide in extracellular fluid triggers increased pulmonary ventilation, which in turn causes a decrease in carbon dioxide concentration. Origin: Gr. Stasis = stoppage (04 Nov 1997) |
| ontogenic homeostasis | The set of processes by which imbalances and other defects in ontogeny are corrected before development is completed. Synonym: ontogenic homeostasis, waddingtonian homeostasis. Origin: homeo-+ G. Rheos, stream, current (05 Mar 2000) |
| Lerner homeostasis | The restorative mechanisms that tend to correct perturbations in the genetic composition of a population. Synonym: genetic homeostasis. (05 Mar 2000) |
| aethiops mineral | <chemistry> Same as Ethiops mineral. Source: Websters Dictionary (01 Mar 1998) |
| mineral | 1. An inorganic species or substance occurring in nature, having a definite chemical composition and usually a distinct crystalline form. Rocks, except certain glassy igneous forms, are either simple minerals or aggregates of minerals. 2. A mine. 3. Anything which is neither animal nor vegetable, as in the most general classification of things into three kingdoms (animal, vegetable, and mineral). Origin: F. Mineral, LL. Minerale, fr. Minera mine. See Mine. 1. Of or pertaining to minerals; consisting of a mineral or of minerals; as, a mineral substance. 2. Impregnated with minerals; as, mineral waters. <chemistry> Mineral acids, a salt of a mineral acid. Mineral tallow, a familiar name for hatchettite, from its fatty or spermaceti-like appearance. Mineral water. See Water. Mineral wax. See Ozocerite. Mineral wool, a fibrous wool-like material, made by blowing a powerful jet of air or steam through melted slag. It is a poor conductor of heat. Source: Websters Dictionary (01 Mar 1998) |
| mineral fibres | Long, pliable, cohesive natural or manufactured filaments of various lengths. They form the structure of some minerals. The medical significance lies in their potential ability to cause various types of pneumoconiosis (e.g., asbestosis) after occupational or environmental exposure. (12 Dec 1998) |
| mineral oil | <chemical> A mixture of liquid hydrocarbons obtained from petroleum. It is used as laxative, lubricant, ointment base, and emollient. Pharmacological action: cathartic, emollients, ointment bases. Chemical name: Hydrocarbon oils (12 Dec 1998) |
| mineral soil | <ecology> Any soil consisting primarily of mineral (sand, silt and clay) material, rather than organic matter. (12 Jan 1998) |
| mineral water | Water that contains appreciable amounts of certain salts, which give it therapeutic properties. (05 Mar 2000) |
| mineral waters | Water naturally or artificially infused with mineral salts or gases (carbon dioxide). (12 Dec 1998) |
| mineral wax | A wax derived from petroleum. Synonym: mineral wax. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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