White Blood Cells Work

White blood cell have function to break and attack an invader, but what are these white blood cells and how they work.

There are five types of white blood cells, but only two are importance in every discussion of white blood cells. The first type is neutrophil, which state about 60% of all our white blood cells. During infection these cells divide and dumped into blood stream and lymph fluids to combat the infection. This cell fight the invader by eating bacteria and other foreign matter. The neutrophil membrane will wraps around the invader and trap it inside the neutrophil, the digestive enzymes in the neutrophil destroy the invader.

Young neutrophils tends to break into pieces as their age. By detect to each invader every time this white blood cell attack, then they can create certain effective enzyme to destroy certain invader.
Other importance type of white blood cell is lymphocyte, which comes in two forms, B-type and T-type. B-type make circulating antibodies. B-type of white is made in lymph nodes and bone marrow.
T-type of white blood is function for killer, either kills foreign cells or contact or helps by releasing chemicals that assist in killing invaders. T-cells will recognize the protein surface on other cells and when they come in contact with an intruder, then kill them. These lymphocytes are made in a gland at the base of the neck, called as thymus. This gland is very large in young people but almost disappear in old age. Production of T-cells can be reactivated any time, if the foreign antigen is presented. T-cells also play a role in the rejection of transplanted tissue into our body if the protein different with ours.