Diapedesis is the process in which white blood cells come out of the blood vessels into the surrounding area in case of injuries.
WBC is key to immunity:
Lymphocytes are immune cells found in the blood and lymph tissue. T and B lymphocytes are the two main types. Macrophages are large white blood cells that reside in tissues that specialize in engulfing and digesting cellular debris, pathogens and other foreign substances in the body.
function of WBC:
White blood cells are part of the body's immune system. They help the body fight infection and other diseases. Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).
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