the blood:
Blood is a liquid liquid that fills the blood vessels in the human body and is pumped by a special pump, the heart, to the entire body. The blood transfers oxygen and food to the cells and tissues through special vessels of different size, including blood vessels, including capillaries, The blood is rotten or loaded with bioactive waste into the heart until it is purified and filtered through blood veins. The contaminated blood is often loaded with carbon dioxide.
blood components
Blood consists of four main parts working among themselves until the blood gives its final form:
- Red blood cells: Hemanglobin-shaped hemispheres, called hemoglobin, red to hemoglobin, and blood-cell function. Transfusion of oxygen is known as its ability to bind with oxygen atoms easily. Blood cells are made from the bone marrow and liver, Months and then are put off the body through the spleen and liver.
- It is the body’s first line of defense, an integral part of the human immune system, and it is produced by the body. Through the bone marrow.
- Blood plasma is a transparent fluid made up of blood. Its main function is to transfer salts, minerals and nutrients to the cells. It can be observed when blood is placed in a test tube and left for a few hours, noting the deposition of blood components in the bottom and the survival of the yellow plasma at the top of the tube.
- Platelets: A cytoplasm whose main function is to clot blood to stop bleeding in the event of wounds or injuries.
Transfusion
Sometimes, human needs to be outsourced to compensate for the amount of blood lost in cases of accidents and severe bleeding or during the operation of large, but be careful when transferring blood that there are several factions of blood and each receives its own type, and when transporting the wrong type leads to fight the device Immune blood transfusion as foreign bodies leading to blood clotting and thus future death.
blood types
After research and the discovery of the Raysy factor it was found that the blood groups receive only specific types as follows:
- Blood type O: All blood types are given, but they do not receive the type O.
- Blood type A: Blood type A and ab and take the blood of the same species in addition to blood type O.
- Blood type B: B and AB, and blood only from the same species as the O.
- AB blood type: AB can only be given, but it takes blood from all other blood groups, so it is called the Bchilah.
Raysys factor
Is the antigens or what is known as antigen, and is present in the blood and gives the blood the negative character does not contain the generators of antibody, or the positive character of the containment of blood on the generators of the antibody, and therefore the blood was divided based on the factor Rizisi to eight sections:
- Blood type A, A +.
- Blood type B-, B +.
- Blood type AB-, AB +.
- Blood type O-, O +.