| 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. |
||
| Homeop | homeopathy |
|---|
| HD-Zip | Homeo domain-leucine zipper |
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| homeo- | The same, alike. See: homo-. Origin: G. Homoios, similar (05 Mar 2000) |
|---|---|
| homeobox | <molecular biology> Conserved DNA sequence originally detected by DNA hybridisation in many of the genes that give rise to homeotic and segmentation mutants in Drosophila. The homeobox consists of about 180 nucleotides coding for a sequence of 60 amino acids in a protein, sometimes termed the homeodomain, of which about 80-90% are identical in the various homeodomains identified from Drosophila. Homeoboxes have also been detected in the genomes of vertebrates, with about 75% amino acid homology and a similar sequence has been found in the MAT gene of yeast. The homeobox codes for a protein domain that is involved in binding to DNA. Three subfamilies of homeobox containing proteins can be identified, based on the archetypal Drosophila genes engrailed, Antennapedia and paired. Interestingly, linear order within genome maps to order of expression in embryo. This may be required for the transcriptional silencing of certain homeotic genes (see Polycomb). (11 Nov 1997) |
| homeodomain | <molecular biology> Conserved DNA sequence originally detected by DNA hybridisation in many of the genes that give rise to homeotic and segmentation mutants in Drosophila. The homeobox consists of about 180 nucleotides coding for a sequence of 60 amino acids in a protein, sometimes termed the homeodomain, of which about 80-90% are identical in the various homeodomains identified from Drosophila. Homeoboxes have also been detected in the genomes of vertebrates, with about 75% amino acid homology and a similar sequence has been found in the MAT gene of yeast. The homeobox codes for a protein domain that is involved in binding to DNA. Three subfamilies of homeobox containing proteins can be identified, based on the archetypal Drosophila genes engrailed, Antennapedia and paired. Interestingly, linear order within genome maps to order of expression in embryo. This may be required for the transcriptional silencing of certain homeotic genes (see Polycomb). (11 Nov 1997) |
| homeodomain proteins | Proteins encoded by homeobox genes (genes, homeobox) that exhibit structural similarity to certain prokaryotic and eukaryotic DNA-binding proteins. Homeodomain proteins are involved in the control of gene expression during morphogenesis and development (gene expression regulation, developmental). (12 Dec 1998) |
| homeogenetic induction | The induction of an undifferentiated (general, all-purpose) cell to differentiate (become specialised) by a nearby cell which has already differentiated. This is most often observed in plant cells. (09 Oct 1997) |
| homeometric | Without change in size. Origin: homeo-+ G. Metron, measure (05 Mar 2000) |
| homeomorphous | Of similar shape, but not necessarily of the same composition. Origin: homeo-+ G. Morphe, shape (05 Mar 2000) |
| homeopath | A person who practices homeopathy. (12 Dec 1998) |
| homeopathic | 1. Relating to homeopathy. Synonym: homeotherapeutic. 2. Denoting an extremely small dose of a pharmacological agent, such as might be used in homeopathy; more generally, a dose believed to be too small to produce the effect usually expected from that agent. Compare: pharmacologic, physiologic, supraphysiologic. Origin: homeo-+ G. Pathos, disease (05 Mar 2000) |
| homeopathist | A medical practitioner of homeopathy. Synonym: homeopath. (05 Mar 2000) |
| homeopathy | <medicine> The art of curing, founded on resemblances; the theory and its practice that disease is cured (tuto, cito, et jucunde) by remedies which produce on a healthy person effects similar to the symptoms of the complaint under which the patient suffers, the remedies being usually administered in minute doses. This system was founded by Dr. Samuel Hahnemann, and is opposed to allopathy, or heteropathy. Alternative forms: homoepathy. Origin: Gr. Likeness of condition or feeling; like (fr. Same; cf. Same) + to suffer: cf. F. Homeopathie. See Pathos. Source: Websters Dictionary (01 Mar 1998) |
| homeoplasia | The formation of new tissue of the same character as that already existing in the part. Synonym: homoioplasia. Origin: homeo-+ G. Plasis, a molding (05 Mar 2000) |
| homeoplastic | Relating to or characterised by homeoplasia. (05 Mar 2000) |
| homeorrhesis | 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) |
| homeosis | Formation of a body part having characteristics normally found in a related or homologous part at another location in the body. Origin: homeo-+ G. -osis, condition (05 Mar 2000) |
Synonyms : Homeo Domain Proteins, Homeotic Proteins, Proteins, Homeo Domain, Proteins, Homeobox, Proteins, Homeodomain, Proteins, Homeotic
Synonyms : Homoeopathy
Synonyms :
| homeopathic |
of or relating to the practice of homeopathy; "homeopathic medicine"
출처: wordnet.princeton.edu/perl/webwn
|
|---|---|
| homeostatic |
related to or characterized by homeostasis
출처: wordnet.princeton.edu/perl/webwn
|
| homeothermic |
homoiothermic: of birds and mammals; having constant and relatively high body temperature
출처: wordnet.princeton.edu/perl/webwn
|
| homeotic gene |
one the genes that are involved in embryologic development
출처: wordnet.princeton.edu/perl/webwn
|
| homeobox |
one of various similar homeotic genes that are involved in bodily segmentation during embryonic development
출처: wordnet.princeton.edu/perl/webwn
|
| homeo | a practitioner of homeopathy |
|---|---|
| homeo | of or relating to the practice of homeopathy |
| homeo | a method of treating disease with small amounts of remedies that, in large amounts in healthy people, produce symptoms similar to those being treated |
| homeo | metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes |
| homeo | related to or characterized by homeostasis |
| homeo | in a homeostatic manner |
| homeo | of birds and mammals |
| homeo | someone who owns a home |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|