what is white blood cells.explain it...
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White Blood Corpuscles (WBC) or Leucocytes :
These are clear cells lacking hemoglobin. They are nucleated cells exhibiting amoeboid movement. They protect the body against invading micro-organisms ve dead cells from the body. There are five types of Leucocytes.
(a) Neutrophils - These are the most common type of leucocytes (60-70%) in the blood. Their nuclei can occur in more than one form. Hence they are called polymorphonuclear neutrophils (PMN).
(b) Eosinophils (0.5-3.0%) - They are motile cells that leave the circulatie enter the tissues during an inflammatory reaction. During allergy reaction their num increases.
(c) Basophils (0.1%) - They play They contain/heparin which inhibits blood clotting.
(d) Lymphocytes (20-30%) - These are smallest leucocytes. They are mo common in lymphatic tissues namely the lymph nodes, spleen, tonsils and thymus Lymphocytes, called B-cells can produce proteins called antibodies that can g attached to the bacteria and destroy them. T-cells protect us against viruses by attackin and destroying cells in which viruses are reproducing.
(e) Monocytes (1-4%) - These are largest leucocytes. They destroy bacteria, dea cells and cell fragments. During chronic infection their number increases.
Answer:
A white blood cell (WBC) count is a test that measures the number of white blood cells in your body. This test is often included with a complete blood count (CBC). The term “white blood cell count” is also used more generally to refer to the number of white blood cells in your body.