Red blood cells: these small, flexible biconcave cells containing haemoglobin transport O2 from the lungs to the periphery, and CO2.The most common disorders associated with red blood cells are anaemias. While there are numerous causes of anaemia, the reduced capacity for gaseous exchange is the underlying theme.
White blood cells: They are one of the main blood-forming cells. The main function of these cells is to defend the body against infectious diseases, and they are part of the immune system. Blood cells consist of a hematopoietic stem cell.
B-cell: A type of lymphocyte, which is one of the white blood cells. They form part of the immune system. It originates from the marrow and produces antibodies to fight germs and other things in the human body.
T-cell: It forms a group of lymphocytes found in the blood and plays an essential role in cellular immunity.
