Tuesday, September 06, 2016

B-cells and antibodies

The white blood cells produced in bone marrow are divided into two types: B-cells and T cells. B cells grow to maturity in bone marrow and produce protective proteins called antibodies that circulate in the circulatory and lymph systems.

B-cells are located in the lymph nodes, and can be compared to small munitions factories. The B-cells multiply and divide into two groups: plasma B cells and memory B cells.

Antigens found on foreign invaders like the influenza virus wind up with B cells attached to them, which mark them for destruction by T cells.

The memory B-cells will always remember the flu virus. They ever again try to invade, they will be recognized immediately and stopped in their tracks.

These B cells are the only parts of human bodies, outside of the brains, which have a memory. So once human body had a shot of a strain of dead virus s and B cells have learned which antibodies kill that virus strain, human body are always resistant to it, for the rests of his life.
B-cells and antibodies

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