Blood Donation

A ocellus sheath (also called a kind multitude) is a classification of occupation based on the presence or absence of inherited antigenic substances on the surface of blushing(a) downslope cells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the ocellus collection system. Some of these antigens are also present on the surface of other geeks of cells of various tissues. Several of these red pedigree cell surface antigens that stem from one allele (or finespun closely linked genes), collectively form a blood group system.[1] Blood types are inherited and represent contri stillions from both parents. A total of 30 human blood group systems are now recognized by the International phoner of Blood Transfusion (ISBT).[2] Many pregnant women carry a fetus with a different blood type from their own, and the create can form antibodies against fetal RBCs. Sometimes these maternal antibodies are IgG, a small immunoglobulin , which can cross the placenta and event hemolysis of fetal RBCs, which in turn can lead to haemolytic disease of the newborn, an illness of low fetal blood counts that ranges from wanton to severe.

[3] [pic] [edit] Blood group systems A complete blood type would describe a full set of 30 substances on the surface of RBCs, and an individuals blood type is one of the many seeming combinations of blood-group antigens.[2] Across the 30 blood groups, over 600 different blood-group antigens lodge in been found,[4] only many of these are very rare or are mainly found in certain cultural groups. Almost always, an indi vidual has the same blood group for life, bu! t very rarely an individuals blood type changes through auxiliary or suppression of an antigen in infection, malignancy, or autoimmune disease.[5][6][7][8] An sensible exercise of this rare phenomenon is the case of Demi-Lee Brennan, an Australian citizen, whose blood group changed later a liver transplant.[9][10] Another more universal cause in blood-type change is a bone internality transplant. Bone-marrow transplants...If you compulsion to get a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper