| 영문 | skin | 한글 | 피부 |
|---|---|---|---|
| 설명 | 신체를 싸고 있는 바깥층으로서 표피, 진피, 피하조직으로 구성되며, 외부 환경으로부터 신체를 보호하고 체온을 조절하는 기능을 가짐. 1.표피: 피부의 가장 바깥층으로서 외배엽에서 기원하며 각질이라는 구조 단백질을 생산하는 기능을 가짐. 4가지의 세포가 있는데, 각질세포, 멜라닌세포, Langerhans 세포, 부정형 세포, Merkel세포가 있다. 표피에는 이 4가지 세포외에 다음과 같은 표피 부속기가 있다. 에크린 땀샘(eccrine sweat gland): 점막 피부 경계 부위 등 특수한 부위를 제외한 모든 피부에서 발견되며 땀을 분비하는 샘으로서 신체 열 조절 체계의 중요한 요소. 아포크린샘(apocrine gland): 겨드랑이, 젖꽃판, 항문 생식기 부위, 외이도, 눈꺼풀 등에서만 발견되며 분비물의 기능은 잘 알려져 있지 않으나 동물에서는 방어 및 성적 기능이 있음. 털주머니(hair follicle): 손바닥, 발바닥 등 특수 부위를 제외한 신체 전 부위에 분포하며 인간에서 중요한 생리적 기능은 없으나 성적 매력을 지니는 신체 장식의 기능을 가짐. 기름샘(sebaceous gland): 손바닥과 발바닥을 제외한 전 피부에 분포하며 분비물을 기름(sebum)라 부름. 남성 호르몬의 자극에 의해 성장하며 생리적 기능은 잘 알려져 있지 않음. 손발톱(nail) 2. 진피: 표피 아래에 존재하는 중배엽 기원의 조직으로서 혈관, 림프관, 신경, 근육, 표피 부속기 등을 포함하고 있음. 표피 바로 밑의 부위를 유두 진피라 하고 아래층을 망상 진피라 한다. 조직 섬유에는 아교질 섬유, 그물 섬유, 탄력 섬유의 세 종류가 있다. 3. 피하 조직: 진피 아래에 존재하며 중배엽 기원으로서 보온 작용, 충격 흡수 작용, 영양 저장 작용의 기능이 있다. |
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| 영문 | skin dose | 한글 | 피부선량 |
|---|---|---|---|
| 설명 | 1. 피부표면에서의 방사선의 공중선량으로 여기에는 1차방사선과 후방산란이 포함된다. 2. 피부에 흡수되는 선량. |
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| PCA | para-chloramphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant... |
|---|---|
| PCC | Pasteur Culture Collection; percutaneous cecostomy; pheochromocytoma; phosphate carrier compound; pl... |
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
| SSA | salicylsalicylic acid; sicca syndrome A; skin-sensitizing antibody; skin sympathetic activity; Sjogr... |
| ST | esotropia; scala tympani; scaphotrapezoid; sclerotherapy; sedimentation time; semitendinosus; sensor... |
| vitamin A1 acid | <biochemistry> The aldehyde (retinal) has long been known to be involved in photoreception, but retinoic acid has other roles. There are cytoplasmic retinoic acid binding proteins and retinoic acid response elements that regulate gene transcription. Retinoic acid is thought to be a morphogen in chick limb bud development and in early development of the chick that probably accounts for its potent teratogenic action. Synonym: vitamin A. (03 Jul 1999) |
|---|---|
| vitamin A1 alcohol | Vitamin A1alcohol; 2,6,6-trimethyl-1-(9'-hydroxy-3',7'-dimethylnona-1',3',5',7'-tetraenyl)cyclohex-1-ene;a half-carotene bearing the b (or beta-ionone) form of the cyclic end group and a CH2OH at the C-15 position (numbering as in carotenoids) or 9'-position (numbering as a nonyl side chain on a cyclohexene ring); an intermediate in the vision cycle, it also plays a role in growth and differentiation. See: dehydroretinol. Synonym: vitamin A1 alcohol, vitamin A1. Retinol dehydrogenase, an oxidoreductase catalyzing interconversion of retinal and NADH to retinol and NAD+. (05 Mar 2000) |
| vitamin A2 | 3-Dehydroretinol;retinol with an additional double bond in the 3-4 position of the cyclohexane ring. Synonym: vitamin A2. (05 Mar 2000) |
| vitamin A2 aldehyde | 3-Dehydroretinaldehyde;dehydroretinol with -CHO instead of -CH2OH at the terminal carbon of the side chain. Synonym: retinene-2, vitamin A2 aldehyde. (05 Mar 2000) |
| vitamin A aldehyde | <chemical> A carotenoid constituent of visual pigments. It is the oxidised form of retinol which functions as the active component of the visual cycle. It is bound to the protein opsin forming the complex rhodopsin. When stimulated by visible light, the retinal component of the rhodopsin complex undergoes isomerization at the 11-position of the double bond to the cis-form; this is reversed in "dark" reactions to return to the native trans-configuration. Chemical name: Retinal (03 Jul 1999) |
| vitamin a deficiency | A nutritional condition produced by a deficiency of vitamin a in the diet, characterised by night blindness and other ocular manifestations such as dryness of the conjunctiva and later of the cornea (xerophthalmia). Vitamin a deficiency is a very common problem worldwide, particularly in developing countries as a consequence of famine or shortages of vitamin a-rich foods. In the united states it is found among the urban poor, the elderly, alcoholics, and patients with malabsorption. (12 Dec 1998) |
| vitamin A unit | The specific biologic activity of 0.3 ug of vitamin A (alcohol form). See: Sherman-Munsell unit. (05 Mar 2000) |
| vitamin B | A group of water-soluble substances originally considered as one vitamin. (05 Mar 2000) |
| vitamin B1 | <biochemistry> A member of the water-soluble B vitamin group, necessary for energy production and carbohydrate metabolism. Deficiency is known as beriberi. (27 Sep 1997) |
| vitamin B12 | <biochemistry> Member of the water soluble B vitamin group, important in the proper function of the nervous system and important in proper carbohydrate, protein and fat metabolism. (27 Sep 1997) |
| vitamin b 12 | <chemical> A cobalt-containing coordination compound produced by intestinal micro-organisms and found also in soil and water. Higher plants do not concentrate vitamin b 12 from the soil and so are a poor source of the substance as compared with animal tissues. Pharmacological action: haematinics. Chemical name: Vitamin B12 (12 Dec 1998) |
| vitamin B12 absorption test | <investigation> This test measures the amount of vitamin B12 in the urine after ingesting a dose of B12. This test evaluates vitamin B12 absorption. The cells in the stomach produce a substance known as intrinsic factor. This substance combines with B12 to allow absorption in the distal ileum. The patient is given a small dose of radioactive B12 which can then be detected in the patients urine. Pernicious anaemia is the clinical result of B12 deficiency. Conditions that can result in an abnormal Schilling test include: deficiency of intrinsic factor, malabsorption or the development of an antibody to intrinsic factor. The Schilling test can be performed with or without administration of intrinsic factor to determine what the underlying cause for pernicious anaemia. Laxative use, renal insufficiency and hypothyroidism can all interfere with the results of this test. (27 Sep 1997) |
| vitamin B12 deficiency | A form of anaemia (low red blood cell counts) that results when the bone marrow fails to produce adequate numbers of red blood cells due to a deficiency in vitamin B12. Intrinsic factor, necessary for normal B12 absorption, may be the underlying cause for B12 deficiency if is not produced in the gastric glands (in the stomach). (27 Sep 1997) |
| vitamin b 12 deficiency | A nutritional condition produced by a deficiency of vitamin b 12 in the diet, characterised by megaloblastic anaemia. Since vitamin b 12 is not present in plants, humans have obtained their supply from animal products, from multivitamin supplements in the form of pills, and as additives to food preparations. A wide variety of neuropsychiatric abnormalities is also seen in vitamin b 12 deficiency and appears to be due to an undefined defect involving myelin synthesis. (12 Dec 1998) |
| vitamin B12 neuropathy | A subacute or chronic disorder of the spinal cord, such as that occurring in certain patients with vitamin B12 deficiency, characterised by a slight to moderate degree of gliosis in association with spongiform degeneration of the posterior and lateral columns. Synonym: combined sclerosis, combined system disease, funicular myelitis, Putnam-Dana syndrome, vitamin B12 neuropathy. (05 Mar 2000) |