Blood group O has no antigens on the red blood cells and both anti-A and anti-B antibodies in the plasma.Blood group AB has both A and B antigens on the red blood cells and neither anti-A nor anti-B antibodies in the plasma.Blood type B has only the B antigen on the red blood cells and anti-A antibodies in the plasma.Blood type A has only the A antigen on the red blood cells and anti-B antibodies in the plasma.Your blood type depends on two antigens (the A or B antigens) present on the red blood cells and the anti-A or anti-B antibodies present in the plasma. What is the difference between the blood groups? Your blood type depends on the type of antigens and antibodies present in your blood. For example, they recognize foreign substances and alert the immune system about their presence.
Antibodies are protein molecules found in the plasma and play a significant role in the body’s natural defense system. They activate or stimulate the body’s immune response. Antigens are protein molecules found on the surface of red blood cells. Human blood is made up of four main components - red blood cells, white blood cells, platelets, and a liquid called plasma. To understand the difference between the blood groups, we need to understand antibodies and antigens. What makes one blood type different from another? So, there are eight main blood types: A negative, A positive, B negative, B positive, AB negative, AB positive, O negative, and O positive. Each blood group can also either be Rhesus D (RhD) positive or RhD negative. There are four main blood types in the ABO blood groups system - A, B, AB, and O - based on what blood group antigens are present on the surface of the red blood cells. Receiving a transfusion of the wrong blood type can be life-threatening.Įach person’s blood type is determined by genes inherited from their parents. Matching blood types is necessary for a safe blood transfusion. Please continue reading to learn more about the four major blood groups and what they mean for blood transfusions. The most common method of classifying human blood is the ABO blood group system. But before you can donate blood, you should know your blood group. The importance of blood donation is obvious. A car accident victim can require 100 units of blood, and one donation can save 3 lives.
Someone needs blood or platelets every 2 seconds in the United States, and nearly 16 million blood components are transfused each year.
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