Once speaking of white blood cells, people usually regard them as the body guarder: Whenever a bacteria and other foreign invasion enters the body, the white blood cells will notice and race toward the scene of the crime. They will take measures to protect the body against both infectious disease and foreign invaders. Truly they are, but how exactly take actions and how much do you know about them, for instance, the human monocytes?
Fast facts on white blood cell:
1. White Blood Cells:
White blood cells (leukocytes) are the cells of the immune system that are quite essential for your good health and protection against illness and disease. They are consonantly produced inside the bone marrow due to their rather short life cycle, living from a few days to a few weeks, and are stored in the blood and lymphatic tissues.
If you take a drop of blood, you may find it contains from 7,000 to 25,000 white blood cells. The white cell number will fluctuate and significantly increase when an invading infection take place,easy to understand.
There are several types of white blood cells, including neutrophils, eosinophils, basophils, lymphocytes, Monocytes. Yet the two most common types are the lymphocytes and neutrophils.
Here are the five main types of white blood cells and their functions:
Neutrophils: 58%. They kill and digest bacteria and fungi ( called phagocytosis). They are the most numerous type of white blood cell and your first line of defense when infection strikes.
Lymphocytes: 4%. They create antibodies to defend against bacteria, viruses, and other potentially harmful invaders.
Monocytes: 4%. They have a longer lifespan in comparison with many other white blood cells and help to break down bacteria as well .
Eosinophils: 2%. They generally help to attack and kill parasites, destroy cancer cells, and play a role in allergic responses.
Basophils: 1%. These small cells function in allergic reactions. They release histamine, a marker of allergic disease, that helps control the body’s immune response, and heparin, that prevents clotting in the infected area so that the white blood cells can reach the bacteria.
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