| 영문 | blood collection | 한글 | 채혈 |
|---|---|---|---|
| 설명 | 1. 모세관혈 : 혈구수-혈소판수 계산, 혈색소량, 혈구용적측정, 도말표본제작 등을 할때 사용된다. 귓불 또는 손가락끝바닥면을 충분히 마찰한 다음, 알코올로 소독-건조시켜서, 작은 칼 또는 종두침 혹은 1mm의 주사침으로 2~3mm의 깊이까지 찌른다. 맨처음 피방울은 닦아낸 후 다음 핏방울을 검사에 이용한다. 2. 정맥혈 : 대량의 혈액을 요하는 경우에 사용한다. 보통 (팔꿈치정중피부)주정중피정맥을 찌르며, 영유아의 경우에는 외경정맥을 선택하기도 한다. 지혈용 고무줄로 상단을 최저혈압에 상당하는 정도로 묶고, 주먹을 꼭 쥐게 하여 정맥을 노출시킨 후 멸균건조주사기를 혈관내에 삽입한다. 곧 바로 고무줄과 주먹을 풀고 채혈을 한 다음 혈액을 시험관에 넣는다. 2분이상의 정맥 울혈은 혈액성상에 변화를 가져온다. 2. 동맥혈 : 위팔동맥 또는 넙다리 동맥을 사용하여 천자부를 소독한 다음, 프로카인 국소마취를 한다. 채혈자 왼손의 가운데손가락과 둘째손가락으로 동맥을 고정하고, 주사침을 동맥에 45~65℃의 각도로 찔러 넣어 채혈 후 몸쪽동맥을 엄지손가락으로 압박하면서 주사침을 빼고, 그 뒤 5분간쯤 찌른 부위를 압박한다. |
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| 영문 | blood vessel | 한글 | 혈관 |
|---|---|---|---|
| 설명 | 혈액이 다니는 길. 동맥, 모세혈관, 정맥으로 구성된다. 동맥은 심장에서 나가는 피를 운반하는 혈관. 이것은 심장에서 나가는 피를 운반하는 혈관이며 심장에서 직접 많은 압력을 받아야 하므로 많은 연조직과 탄성섬유로 이루어져 있다. 이것은 크기와 그 현미경적 구조에 따라 다음과 같이 나눈다. 대동맥(왼심실에서 직접 나오는 동맥. 온몸의 혈액 순환의 줄기역할을 한다), 동맥(대동맥에서 분지를 낸 중간 크기의 동맥), 세동맥(동맥에서 분지를 낸 작은 동맥을 말한다)으로 나눈다. 모세혈관(capillary)은 한층의 세포로 이루어진 얇은 혈관. 이것을 통해서 영양분과 산소의 이동, 노폐물의 이동 등이 이루어진다. 정맥(vein)은 심장으로 들어오는 피가 흐르는 통로. 동맥에 비해서 혈관의 벽이 얇고 혈액의 역류를 방지하기 위한 판막이 존재하는 것이 특징이다. 이것은 심장에서 직접 압력을 받지 않기때문에 혈액이 역류할 수도 있고 또 혈관벽이 얇아도 되기 때문이다. 크기와 현미경적 구조에 따라 대정맥(심장과 직접 연결되는 정맥), 정맥(대정맥에 이르기전 중간 굵기의 정맥), 세정맥(모세혈관과 직접 연결되어 있는 작은 굵기의 정맥)으로 나눈다.  |
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| 영문 | blood-brain barrier(BBB) | 한글 | 혈뇌장벽 |
|---|---|---|---|
| 설명 | 뇌와 척수에는 혈류로부터 어떤 물질이 유입되는 것을 막는 장벽이다. 이것은 뇌와 척수에 존재하는 모세혈관의 투과성이 비교적 다른 모세혈관의 투과성보다 떨어지기 때문이다. |
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| 영문 | blood sugar | 한글 | 혈당 |
|---|---|---|---|
| 설명 | 혈액 속에 포함되어 있는 포도당. 뇌와 적혈구의 에너지원이 되고, 그 양은 운동, 식사 따위에 의하여 달라진다. 건강인의 아침 공복시 혈중 포도당 농도는 60~100mg/dL 이지만 기타의 당질 즉 과당, 갈락토스, 5탄당은 미량이며 일반적으로 혈당이라 하면 혈중포도당을 의미한다. 혈당은 생체의 에너지원으로서 가장 중요한 물질이다. 그 농도는 장관으로부터의 흡수, 간에 있어서의 당신생과 글리코겐이 합성-분해, 말초조직의 당이용 콩팥으로부터의 배설 등 여러 인자에 의해 좌우되며 그 조절에는 자율신경과 각종 호르몬이 밀접하게 관계한다. 특히 혈당저하작용에는 인슐린이, 그리고 혈당상승작용에는 에피네프린, 글루카곤, 성장호르몬, 부신겉질호르몬, 부신겉질자극호르몬, 갑상샘 호르몬이 관계가 있으며 그것들의 대항 및 협조작용에 의해 혈당치가 조절된다. |
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| 영문 | blood pressure | 한글 | 혈압 |
|---|---|---|---|
| 설명 | 혈압이란 혈관에 걸리는 압력을 말하는 것으로 대개 특별한 설명이 없으면 동맥의 압력을 말한다. 혈압에는 수축기혈압(systolic blood pressure)과 이완기혈압(diastolic blood pressure)이 있다. 수축기혈압이란 심장이 수축할 경우에 동맥에 걸리는 압력을 말하고, 이완기 혈압이란 심장이 이완할 경우에 동맥에 걸리는 압력을 말한다. 당연히 수축기 혈압이 이완기 혈압보다 높다. 혈압을 말할 때에 예를 들어 120/80mmHg이라고 적는 것의 앞의 것은 수축기 혈압을 의미하고 뒤에 적는 80은 이완기 혈압을 의미한다. |
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| CBV | capillary blood cell velocity; catheter balloon valvuloplasty; central blood volume; cerebral blood ... |
|---|---|
| LBF | Lactobacillus bulgaricus factor; limb blood flow; liver blood flow |
| RBF | regional blood flow; regional bone mass; renal blood flow |
| BF | bentonite flocculation; bile flow; black female; blastogenic factor; blister fluid; blood flow; body... |
| CF | calcaneal fibular [ligament]; calcium leucovorin; calf blood flow; calibration factor; cancer-free; ... |
| pulsatile flow | Rhythmic, intermittent propagation of a fluid through a vessel or piping system, in contrast to constant, smooth propagation, which produces laminar flow. The quality of blood flow, whether smooth (laminar) or pulsatile, is important to the integrity of the tissues being artificially perfused by various heart assist devices or in regional perfusion. (12 Dec 1998) |
|---|---|
| sheared flow | <radiobiology> Fluid flow where the magnitude of the fluid velocity changes along a direction perpedicular to the direction of the fluid flow. (Freeway traffic often exhibits sheared flow in that traffic in the fast lane moves more rapidly than traffic in the slow lane with the exits.) Sheared flow typically correlates with reduced transport and enhanced confinement. (This definition is rather informal and may not be fully technically correct - R.F. Heeter) (09 Oct 1997) |
| shear flow | A flow of a material in which parallel planes in the material are displaced in a direction parallel to each other. (05 Mar 2000) |
| shuttle flow | <cell biology> Bulk flow of the cytoplasm of cells. most conspicuous in large cells such as amoebae and the internodal cells of Chara where the rate of movement may be as high as 100 m/sec. See: cyclosis. (18 Nov 1997) |
| newtonian flow | The type of flow characteristic of a newtonian fluid. (05 Mar 2000) |
| Doppler colour flow | A computer-generated colour image produced by Doppler ultrasonography in which different directions of flow are represented by different hues. This technique is typically used to examine blood flow when evaluating heart disease. Where obstructions (for instance, arterial plaques) exist, blood flow will alter according to the principles of fluid mechanics. Eddies and reversals are readily apparent on the colour image. See: Doppler ultrasonography. (05 Mar 2000) |
| instream flow incremental methodology | Technique to predict the biomass of a fish species or life stage that a stream reach can support at a given flow, given knowledge of the fishes' physical habitat preferences. (09 Oct 1997) |
| isovolume pressure-flow curve | The relationship between transpulmonary pressure and respiratory air flow, expressed as a function of lung volume. (05 Mar 2000) |
| effective renal plasma flow | <physiology> The amount of plasma flowing to the parts of the kidney that have a function in the production of constituents of urine; the clearance of substances such as iodopyracet and p-aminohippuric acid, assuming that the extraction ratio in the peritubular capillaries is 100%. It is the amount of plasma perfusing the kidney tubules per unit time, generally measured by p-aminohippurate clearance. It should be differentiated from renal plasma flow which is approximately 10% greater than the effective renal plasma flow. (07 Mar 2000) |
| karyotyping, flow | Use of flow cytometry to analyze and/or separate chromosomes on the basis of their DNA content. Flow cytometry detects the light- absorbing or fluorescing properties of chromosomes passing in a narrow stream through a laser beam and with automated sorting devices can sort successive droplets of the stream into different fractions depending on the fluorescence emitted by each droplet. (12 Dec 1998) |
| flow | 1. To move with a continual change of place among the particles or parts, as a fluid; to change place or circulate, as a liquid; as, rivers flow from springs and lakes; tears flow from the eyes. 2. To become liquid; to melt. "The mountains flowed down at thy presence." (Is. Lxiv. 3) 3. To pproceed; to issue forth; as, wealth flows from industry and economy. "Those thousand decencies that daily flow From all her words and actions." (Milton) 4. To glide along smoothly, without harshness or asperties; as, a flowing period; flowing numbers; to sound smoothly to the ear; to be uttered easily. "Virgil is sweet and flowingin his hexameters." (Dryden) 5. To have or be in abundance; to abound; to full, so as to run or flow over; to be copious. "In that day . . . The hills shall flow with milk." (Joel III. 18) "The exhilaration of a night that needed not the influence of the flowing bowl." (Prof. Wilson) 6. To hang loose and waving; as, a flowing mantle; flowing locks. "The imperial purple flowing in his train." (A. Hamilton) 7. To rise, as the tide; opposed to ebb; as, the tide flows twice in twenty-four hours. "The river hath thrice flowed, no ebb between." (Shak) 8. To discharge blood in excess from the uterus. Origin: AS. Flowan; akin to D. Vloeijen, OHG. Flawen to wash, Icel. Floa to deluge, Gr. To float, sail, and prob. Ultimately to E. Float, fleet. 80. Cf. Flood. 1. A stream of water or other fluid; a current; as, a flow of water; a flow of blood. 2. A continuous movement of something abundant; as, a flow of words. 3. Any gentle, gradual movement or procedure of thought, diction, music, or the like, resembling the quiet, steady movement of a river; a stream. "The feast of reason and the flow of soul." (Pope) 4. The tidal setting in of the water from the ocean to the shore. See Ebb and flow, under Ebb. 5. A low-lying piece of watery land; called also flow moss and flow bog. Source: Websters Dictionary (01 Mar 1998) |
| flow cytoenzymology | A technique for for separating and sorting cells based on the presence ofspecific enzymes that create acoloured material when they bind to a substrate. (09 Oct 1997) |
| flow cytometry | <technique> Flow cytometry is an emerging technique which holds great promise for the separation, classification and quantitation of blood cells and antibodies which affect blood cells. Complex computerised instruments are used to pass a monocellular stream of cells, platelets or other microscopic particulate elements through a beam of laser light. The cells are categorised first by size and then computer analysed to sort the mixture of cellular elements into cell type by size. Cells are labelled with fluorescent dye and then passed, in suspending medium, through a narrow dropping nozzle so that each cell is in a small droplet. A laser based detector system is used to excite fluorescence and droplets with positively fluorescent cells are given an electric charge. Charged and uncharged droplets are separated as they fall between charged plates and so collect in different tubes. The machine can be used either as an analytical tool, counting the number of labelled cells in a population or to separate the cells for subsequent growth of the selected population. Further sophistication can be built into the system by using a second laser system at right angles to the first to look at a second fluorescent label or to gauge cell size on the basis of light scatter. The great strength of the system is that it looks at large numbers of individual cells and makes possible the separation of populations with, for example: particular surface properties. Tabulation of counted data in conjunction with size analysis enables determination of relative percentages of each specific cellular subset for which monoclonal antibody conjugates are utilised, even when the size of the cell is identical to other subset species. Flow cytometry is a slightly imprecise but common term for the use of the Fluorescence-activated Cell Sorter (FACS). (01 Dec 1998) |
| flow cytophotometry | <technique> Flow cytometry is an emerging technique which holds great promise for the separation, classification and quantitation of blood cells and antibodies which affect blood cells. Complex computerised instruments are used to pass a monocellular stream of cells, platelets or other microscopic particulate elements through a beam of laser light. The cells are categorised first by size and then computer analysed to sort the mixture of cellular elements into cell type by size. Cells are labelled with fluorescent dye and then passed, in suspending medium, through a narrow dropping nozzle so that each cell is in a small droplet. A laser based detector system is used to excite fluorescence and droplets with positively fluorescent cells are given an electric charge. Charged and uncharged droplets are separated as they fall between charged plates and so collect in different tubes. The machine can be used either as an analytical tool, counting the number of labelled cells in a population or to separate the cells for subsequent growth of the selected population. Further sophistication can be built into the system by using a second laser system at right angles to the first to look at a second fluorescent label or to gauge cell size on the basis of light scatter. The great strength of the system is that it looks at large numbers of individual cells and makes possible the separation of populations with, for example: particular surface properties. Tabulation of counted data in conjunction with size analysis enables determination of relative percentages of each specific cellular subset for which monoclonal antibody conjugates are utilised, even when the size of the cell is identical to other subset species. Flow cytometry is a slightly imprecise but common term for the use of the Fluorescence-activated Cell Sorter (FACS). (01 Dec 1998) |
| flow injection analysis | The analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve that propels the sample downstream where mixing occurs in a coiled tube, then passes into a flow-through detector and a recorder or other data handling device. (12 Dec 1998) |