Blood groups..

WHAT IS YOUR BLOOD GROUP ??

What is blood made up of?

An adult human has about 4–6 liters of blood circulating in the body. Among other things, blood transports oxygen to various parts of the body.
Blood consists of several types of cells floating around in a fluid called plasma.
The red blood cells contain hemoglobin, a protein that binds oxygen. Red blood cells transport oxygen to, and remove carbon dioxide from, the body tissues.
The white blood cells fight infection.
The platelets help the blood to clot, if you get a wound for example.
The plasma contains salts and various kinds of proteins.


The differences in human blood are due to the presence or absence of certain protein molecules called antigens and antibodies. The antigens are located on the surface of the red blood cells and the antibodies are in the blood plasma. Individuals have different types and combinations of these molecules. The blood group you belong to depends on what you have inherited from your parents.
There are more than 20 genetically determined blood group systems known today, but the AB0 and Rh systems are the most important ones used for blood transfusions. Not all blood groups are compatible with each other. Mixing incompatible blood groups leads to blood clumping or agglutination, which is dangerous for individuals.


According to the AB0 blood group system there are four different kinds of blood groups;

1. group A
2. group B
3. group AB
4. group O

	Blood group A If you belong to the blood group A, you have A antigens on the surface of your red blood cells and B antibodies in your blood plasma.
	Blood group B If you belong to the blood group B, you have B antigens on the surface of your red blood cells and A antibodies in your blood plasma.
	Blood group AB If you belong to the blood group AB, you have both A and B antigens on the surface of your red blood cells and no A or B antibodies at all in your blood plasma.
	Blood group 0 If you belong to the blood group 0 (null), you have neither A or B antigens on the surface of your red blood cells but you have both A and B antibodies in your blood plasma.

People with blood group 0 Rh ^- are called "universal donors" and people with blood group AB Rh⁺ are called "universal receivers."

Blood Group	Antigens	Antibodies	Can give blood to	Can receive blood from
AB Rh+	A, B and Rh	None	AB Rh+	AB Rh+ AB Rh - A Rh+ A Rh - B Rh+ B Rh - 0 Rh+ 0 Rh -
AB Rh -	A and B	None (Can develop Rh antibodies)	AB Rh - AB Rh+	AB Rh - A Rh - B Rh - 0 Rh -
A Rh+	A and Rh	B	A Rh+ AB Rh+	A Rh+ A Rh - 0 Rh+ 0 Rh -
A Rh -	A	B (Can develop Rh antibodies)	A Rh - A Rh+ AB Rh - AB Rh+	A Rh - 0 Rh -
B Rh+	B and Rh	A	B Rh+ AB Rh+	B Rh+ B Rh - 0 Rh+ 0 Rh-
B Rh -	B	A (Can develop Rh antibodies)	B Rh- B Rh+ AB Rh- AB Rh+	B Rh - 0 Rh -
0 Rh+	Rh	A and B	0 Rh+ A Rh+ B Rh+ AB Rh+	0 Rh+ 0 Rh -
0 Rh -	None	A and B (Can develop Rh antibodies)	AB Rh+ AB Rh - A Rh+ A Rh - B Rh+ B Rh - 0 Rh+ 0 Rh -	0 Rh -