the blood
It is called the fluid of the soul or the fluid of life. It is responsible for the delivery of food and oxygen to all organs and cells of the body, through the arteries and blood vessels, not only functional here, but also many of the vital functions, including that it contains white blood cells that form a wall and strengthen For the immune system, and contains platelets that help heal wounds as soon as possible.
blood components
90% of the blood is water. This is why you need to drink enough water daily to give blood to the blood to move, and 10% of the blood is other components of blood plasma, red blood cells of 5-6 million cells, hemoglobin responsible for The transport of food and oxygen to the cells of the body, estimated in the man of 12-16 mg, while ranging in women and infants from 12-14 mg, and contains white blood cells fighting bacteria and pests, which range from approximately 4000 to 11000 cells, in addition to the inclusion of platelets Bloody number of 60000-125 million and responsible for healing Wounds and maintain blood flow.
blood types
- Blood type O.
- Blood type A.
- Blood type B.
- Blood type AB.
Determination of blood type
This is done through two methods either by glass slide or by test tubes:
Glass slide
- Three spaced drops of anti-A, anti-B, anti-D are placed on the glass slide.
- Add a point of blood to each solution with stirring and slightly flipping.
- When clusters of anti-A and clusters of anti-B appear, this refers to the AB blood type.
- If the results contained concentrations of anti-A and did not contain concentrations of anti-B, this indicates the A blood group.
- If the results contained concentrations of anti-B and did not contain concentrations of anti-A, this refers to blood type B.
- If the results do not contain concentrations of both anti-A and anti-B, this refers to the blood type O.
- If the results contain concentrations of anti-D, this indicates that a positive risus factor and if no groups of anti-D are given, it means that the serotonin factor is negative.
Test tubes
Which is a newly deployed method, is carried out through:
- Prepare three test tubes and distinguish each one with A, B, D.
- Add two drops of blood in each tube of the previous tubes.
- Add two antigens each with an anti-A tube in tube A, anti B for tube B, and anti-D for tube D.
- Place these tubes in the centrifuge for a while.
- Based on clotting results, blood type is determined.
Transfusion
In the case of transfer of blood from one person to another the future of the need to match the factions with each other, if the transfer of blood type does not correspond with the blood type of future, will occur clotting red blood cells and break them, and then deposition in the kidney causing death, and cause of clotting red blood cells Of the mutant is resistance by the antibodies present in the blood of the future, so the blood type O is called “general donor” because it does not contain antibodies that interact with those in the blood of the future, while the blood type AB does not contain any Antibodies that made it “a general future Is accepted from all other factions, preferably when transfering blood from one person to another blood groups are identical to avoid any clots, and there is another antigen that controls the identification of blood type, so we find that the blood groups are classified as positive and negative depending on the presence of this antigen if it An indication is indicated by a (+) sign, and if it is not available, it is indicated by (-).