MICROANATOMY

Detailed explanation-1: -There are 4 main blood groups defined by the ABO system: blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma. blood group B – has B antigens with anti-A antibodies in the plasma. blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma.

Detailed explanation-2: -ABO blood group system, the classification of human blood based on the inherited properties of red blood cells (erythrocytes) as determined by the presence or absence of the antigens A and B, which are carried on the surface of the red cells. Persons may thus have type A, type B, type O, or type AB blood.

Detailed explanation-3: -Red blood cell antigens determine your blood group The antigens expressed on the red blood cell determine an individual’s blood group. The main two blood groups are called ABO (with blood types A, B, AB, and O) and Rh (with Rh D-positive or Rh D-negative blood types).

Detailed explanation-4: -Karl Landsteiner has been credited for the discovery of ABO blood group system in 1900. [1] His extensive research on serology based on simple but strong scientific reasoning led to identification of major blood groups such as O, A, and B types, compatibility testing, and subsequent transfusion practices.

Detailed explanation-5: -These are determined by the presence or absence of two antigens – A and B – on the surface of red blood cells. There is also a protein called the Rh factor, which can be either present (+) or absent (–), and this creates the eight most common blood types (A+, A-, B+, B-, O+, O-, AB+, AB-).