| 영문 | thymus(gland) | 한글 | 가슴샘 |
|---|---|---|---|
| 설명 | 가슴의 앞 위쪽에 위치한 림프성 장기로서, 사춘기에 최고의 무게에 달했다가 이후에 퇴축한다. 이것은 세포매개 면역(cell-mediated immunity: 주로 T-림프구에 의해 일어나며, 자기와 다른 세포에 대한 인식과 이식거부반응에 관여함)기능의 발달과 성숙에 필요한 장기이며, 회백적색으로 보통 정중면에서 결합조직에 의해 결합된 두 개의 엽으로 되어 있다. 가슴샘은 상피세포, 림프구, 가슴샘세포로 구성되어 있으며 전구세포가 가슴샘에 이행하여 림프구로 분화되고, 그 대부분은 파괴되나 나머지는 T림프구를 형성한다. 가슴샘은 또한 호르몬 유사물질인 thymine, thymopoietin, thymosin 등을 분비한다. |
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| 영문 | involution | 한글 | 퇴화 |
|---|---|---|---|
| 설명 | 1. 생물체의 기관이나 조직이 진화나 계통 발생 및 개체 발생 과정에서 퇴행적으로 변화함. 또는 그런 변화. 진화의 반대말로, 병적 변화없이 구성세포수의 감소에 의하여 자연발생적으로 조직이 작게되는 것에 특히 사용된다. 사춘기가 되면서 솔방울샘, 가슴샘, 귀밑샘 등이 생리적으로 위축된다. 폐경 후에는 난소에 위축이 생기고, 고환에도 그에 해당한, 초로기에 위축이 시작된다. 2. 퇴축분만 후 정상의 크기로 되돌아가는 자궁 혹은 가슴샘이 성인이 되면서 작아지는 것 등이 그 예이다. |
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| TL | temporal lobe; terminal limen; thermolabile; thermoluminescence; threat to life; thymus-leukemia [an... |
|---|---|
| TP | temperature and pressure; temperature probe; temporal peak; temporoparietal; tension pneumothorax; t... |
| TPF | thymus permeability factor; thymus to peak flow; true positive fraction |
| HCG, hCG | Human Chorionic Gonadotropin; 사람융모성성선자극호르몬 1. Placental Glycoprotein Hormone &nbs... |
| FI | fasciculus intrafascicularis; fever caused by infection; fibrinogen; fixed interval; flame ionizatio... |
| HID | Head Involution Defective |
|---|---|
| CT | Calf thymus |
| CTL | Cytotoxic thymus-derived lymphocytes |
| FTOC | Fetal Thymus Organ Culture |
| FT | fetal thymus |
| senile involution | The retrogression of vital organs and psychological processes incident to aging. (05 Mar 2000) |
|---|---|
| involution | 1. A rolling or turning inward. 2. One of the movements involved in the gastrulation of many animals. 3. A retrograde change of the entire body or in a particular organ, as the retrograde changes in the female genital organs that result in normal size after delivery. 4. The progressive degeneration occurring naturally with advancing age, resulting in shrivelling of organs or tissues. Origin: L. Involutio, volvere = to roll (18 Nov 1997) |
| involution cyst | A mammary cyst occurring at the menopause, due to fibrocystic disease. (05 Mar 2000) |
| involution form | An irregular or atypical bacterial cell produced as a result of exposure to unfavorable conditions. (05 Mar 2000) |
| involution of the uterus | The process of reduction of the uterus to its normal nonpregnant size and state following childbirth. (05 Mar 2000) |
| ribonuclease h, calf thymus | <enzyme> A ribonuclease that specifically cleaves the RNA moiety of RNA:DNA hybrids. It has been isolated from a wide variety of prokaryotic and eukaryotic organisms (particularly calf thymus) as well as retroviruses. Registry number: EC 3.1.26.4 (12 Dec 1998) |
| congenital aplasia of thymus | diGeorge syndrome |
| cortex of thymus | The outer part of a lobule of the thymus; it surrounds the medulla and is composed of masses of closely packed lymphocytes. (05 Mar 2000) |
| hypoplasia of the thymus and parathyroids | Also known as the digeorge syndrome (dgs), this disorder is characterised by (1) low blood calcium levels (hypocalcaemia) due to underdevelopment (hypoplasia) of the parathyroid glands needed to control calcium; (2) underdevelopment (hypoplasia) of the thymus, an organ behind the breastbone in which lymphocytes mature and multiply; and (3) defects of the outflow tracts from the heart. most cases of dgs are due to a microdeletion in chromosome band 22q11.2. A small number of cases have defects in other chromosomes, notably 10p13. Named after the american paediatric endocrinologist angelo digeorge. Another name for dgs is the third and fourth pharyngeal pouch syndrome (since the faulty structures in dgs are embryologically derived from the third and fourth pharyngeal pouches). (12 Dec 1998) |
| thymus | <anatomy> The lymphoid organ in which T lymphocytes are educated, mature and multiply. It is composed of stroma (thymic epithelium) and lymphocytes, almost entirely of the T-cell lineage. In mammals the thymus is just anterior to the heart within the rib cage, in other vertebrates in rather undefined regions of the neck or within the gill chamber in teleost fish. The thymus regresses as the animal matures. (18 Nov 1997) |
| thymus and parathyroids, hypoplasia of | See third and fourth pharyngeal pouch syndrome. (12 Dec 1998) |
| thymus-dependent zone | <anatomy> Mid cortical region of lymph node, area that is particularly depleted of T lymphocytes in thymectomised animals and is referred to as the thymus dependent area. (18 Nov 1997) |
| thymus derived lymphocyte | <haematology, immunology> A class of lymphocytes, so called because they are derived from the thymus and have been through thymic processing. Involved primarily in controlling cell-mediated immune reactions and in the control of B-cell development. The T-cells coordinate the immune system by secreting lymphokine hormones. There are 3 fundamentally different types of t cells : helper, killer, and suppressor. Each has many subdivisions. T-cells are also called t lymphocytes. They bear T-cell antigen receptors (CD3) and lack Fc or C3b receptors. Major T-cell subsets are CD4 (mainly helper cells) and CD8 (mostly cytotoxic or suppressor T-cells). Uncontrolled proliferation of this type of cell gives rise to T-cell leukaemia/lymphoma. (21 Jun 1999) |
| thymus extracts | Extracts of the thymus that contain specific, but uncharacterised factors or proteins with specific activities; three distinct substances are already known: thymotoxin, thymin and thymosin. (12 Dec 1998) |
| thymus gland | A bilaterally symmetric lymphoid organ situated in the anterior superior mediastinum. Each of its two lobes consists of an outer zone, the cortex, relatively rich in lymphocytes (thymocytes), and an inner zone, the medulla, relatively rich in epithelial cells. The thymus is the site of the production of T-lymphocytes. The thymus reaches its maximal development at about puberty and then undergoes a gradual process of involution resulting in a slow decline of immune function throughout adulthood. (12 Dec 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|