or cellular immunity, occur through the T-cell system. On exposure to an antigen, the lymphoid tissues release large numbers of activated T cells into the lymph system. These T cells pass into the general circulation. There are three main groups of T cells: (a) helper. (b) cytotoxic T cells: which attack and kill microorganisms and sometimes the body's own cells.
Organ Donation Day. About Organ Donation Day. Organ Donation Day in India is celebrated on 13th of August every year by the people, government organizations and other related professions in order to motivate normal human beings to donate the organs as well as to understand the value of organ donation in the life of an individual.
22 people die every day while waiting for a transplant. 1 organ donor can save 8 lives and change the lives of more than 50 people. Almost anyone can be an organ donor, regardless of age or medical history. All major religions in the U.S. support organ donation. Donors can still have open casket funerals, and organ donation doesn't cost the donor's family any money.