Organs are matched primarily through blood typing and body typing. The recipent has to have the same bloo type (ABO) as the donor or the recipients body will "reject" the organ - the body's own immune system will attack the organ as a foreign object. Also, you can't really give a 5'2", 115 lb person's kidney to a 6'5" 250 lb recipient. Size matters.
Heart transplants have been carried out for 40 years now. If the the donor's heart is carefully matched to the recipient's body, then the recipient can live indefinitely.
DNA in a transplanted organ is matched with the recipient's body through human leukocyte antigen (HLA) typing. HLA genes code for proteins on the surface of cells that help the immune system recognize whether a cell is "self" or "foreign". A close match between the donor and recipient's HLA genes reduces the risk of organ rejection.
histocompatability antigens
Because if its not your body will reject it and organs will start to fail
The blood given by transfusion must be matched with the recipient's blood type. Incompatible blood types can cause a serious adverse reaction (transfusion reaction). Blood is introduced slowly by gravity flow directly into the veins
If it does the job there is no reason not to. unless the recipient has moral problems with it.
Vitality is defined as the state of being strong and active. To have energy. As she grew older, It was important for her to maintain her vitality.
Tissues have fewer antigens than organs, making them less likely to trigger an immune response in the recipient. Additionally, tissues are less vascularized compared to organs, reducing the chance of immune system recognition and rejection. Lastly, tissues can often be transplanted in smaller amounts, decreasing the likelihood of immune rejection.
What might be matched to a weapon
The opposite of matched (matched up) would be unpaired. The opposite of matched (alike) would be unlike, different, disparate, or dissimilar.
Usually the donor's transplanted organ is not transplanted again - it puts a lot of stress on the organ. And depending on how long the donor recipient has been on immuno-suppression for, some of the other organs may not be used (it can affect the kidneys a lot).
Matched transaction displays on the order's Matched Transactions tab