| plasma stain | <technique> Plasmatic stainplasmic stain, a stain whose principal affinity is for the cytoplasm of cells. (05 Mar 2000) |
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| plasma substitute | A solution of a substance (e.g., dextran) used for transfusion in haemorrhage or shock as a substitute for plasma. Synonym: plasma expander. (05 Mar 2000) |
| plasma substitutes | Any liquid used to replace blood plasma, usually a saline solution, often with serum albumins, dextrans or other preparations. These substances do not enhance the oxygen- carrying capacity of blood, but merely replace the volume. They are also used to treat dehydration. (12 Dec 1998) |
| plasma therapy | Treatment with plasma. (05 Mar 2000) |
| plasma thromboplastin antecedent | <chemical> Stable blood coagulation factor involved in the intrinsic pathway. The activated form xia activates factor ix to ixa. Deficiency of factor xi is often called haemophilia c. Chemical name: Blood-coagulation factor XI (12 Dec 1998) |
| plasma thromboplastin component | <chemical> Storage-stable blood coagulation factor acting in the intrinsic pathway. Its activated form, ixa, forms a complex with factor viii and calcium on platelet factor 3 to activate factor x to xa. Deficiency of factor ix results in christmas disease (haemophilia b). Chemical name: Blood-coagulation factor IX (12 Dec 1998) |
| plasma thromboplastin factor | A coagulation (clotting) factor. Classic haemophilia (haemophilia A) is due to a congenital deficiency in the amount (or activity) of factor VIII. Factor VIII is also known as antihemophiliac factor (AHF) or antihemophiliac globulin (AHG). The gene for factor VIII (that for classic haemophilia) is on the X chromosome so females can be silent carriers without symptoms and males can be haemophiliacs. (12 Dec 1998) |
| plasma thromboplastin factor B | <chemical> Storage-stable blood coagulation factor acting in the intrinsic pathway. Its activated form, ixa, forms a complex with factor viii and calcium on platelet factor 3 to activate factor x to xa. Deficiency of factor ix results in christmas disease (haemophilia b). Chemical name: Blood-coagulation factor IX (12 Dec 1998) |
| plasma volume | Volume of plasma in the circulation. It is usually measured by indicator dilution techniques. (12 Dec 1998) |
| plasma wave | <physics> A disturbance of a plasma away from equilibrium, involving oscillations of the plasma's constituent particles and of an electromagnetic field. Plasma waves can propagate from one point in the plasma to another without net motion of the plasma. (09 Oct 1997) |
| plasmablast | Precursor of the plasma cell. Synonym: plasmacytoblast. Origin: plasma + G. Blastos, germ (05 Mar 2000) |
| plasmacrit | A measure of the percentage of the volume of blood occupied by plasma, in contrast to a haematocrit. Origin: plasma + G. Krino, to separate (05 Mar 2000) |
| plasmacrit test | A serologic screening method used as an aid in the diagnosis of syphilis; after only a few drops of heparinised blood (obtained from a pricked finger) are collected in a special capillary tube, the capillary tube is centrifugated in order to collect plasma, which is then mixed with a 0.01-ml drop of antigen (cardiolipin previously treated with choline chloride as an anti-inhibitor, in order to avoid falsely negative results that may occur with nonheated plasma or serum). After mechanically agitating the antigen-plasma mixture for 4 min, the presence or absence of flocculation is observed. A positive result should not be regarded as conclusively diagnostic, but a negative result excludes the likelihood of syphilis. (05 Mar 2000) |
| plasmacyte | <haematology> A type of non-granular, basophilic leukocyte that produces antibodies. (13 Oct 1997) |
| plasmacytoblast | Precursor of the plasma cell. Synonym: plasmacytoblast. Origin: plasma + G. Blastos, germ (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) |
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| two-component plasma | <radiobiology> Refers to a plasma containing a cool thermal component and a population of high energy particles (such as from neutral beam injection) which are in the process of thermalising (slowing down). (09 Oct 1997) |
| kern-plasma relation theory | A theory enunciated by Hertwig (1903) that a definite relation as to size normally exists in every cell between the mass of nuclear material and that of the protoplasm. Origin: Ger. Kern, kernel, nucleus (05 Mar 2000) |
| fresh frozen plasma | The fluid component of blood lacking the cells but containing all the necessary plasma proteins, used to restore the protein clotting factors in some individuals with clotting factor deficiencies. (27 Sep 1997) |
Synonyms : Plasmaphereses
| plasma fractionation |
separation and removal of plasma fractions, using membrane filtration, specific sorption, or other physicochemical methods.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| plasma protein fraction |
[USP] a sterile preparation of serum albumin and globulin obtained by fractionating material (source blood, plasma, or serum) from healthy human donors; used as a blood volume supporter.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| plasma skimming |
the action of red cells in flowing blood which leaves a zone near the wall of a vessel that is relatively free of cells.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| plasma cell |
Plasma cells are B lymphocytes that secrete immunoglobulins (antibodies). The type of antibodies that these plasma cells produce depends on the cytokine that influences the secretion of these immunoglobulins. Their appearance (on light microscopy) is quite characteristic: they have basophil cytoplasm and an excentric nucleus, in addition to a pale zone in the cytoplasm that (on electron microscopy) contains an extensive Golgi apparatus. ...
출처: en.wikipedia.org/wiki/Plasma_cell
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| plasma membrane |
A component of every biological cell, the selectively permeable cell membrane (or plasma membrane or plasmalemma) is a thin and structured bilayer of phospholipid and protein molecules that envelopes the cell. It separates a cell's interior from its surroundings and controls what moves in and out. Cell surface membranes often contain receptor proteins and cell adhesion proteins. There are also other proteins with a variety of functions. ...
출처: en.wikipedia.org/wiki/Plasma_membrane
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