Those who at least once in my life had to donate blood, certainly paid attention to the fact that, along with other indicators, the results of the analysis are almost always present terms such as white blood cells, platelets, red blood cells and so on. P. With an indication of the level of concentrationthese cells in a microliter of blood.Five human anatomy at the school was not at all, and understand what the test results mean, everyone needs.Therefore, no harm will fill gaps in knowledge, and finally find out for yourself what the platelets, their role in our body, and what determines their number in the blood.
Strangers "platelets»
First, let's remember that is blood.This is necessary for the life of the liquid contains about 40-45% of the formed cellular elements and 60-65% of the plasma in which dissolved salts, vitamins and proteins.A smaller part - a white (leukocytes) and red cells (erythrocytes).In addition they have also platelets.In truth, the past can not be called real cells, because they have no nucleus.When in 1842 in France, Alexander Donna found them in the blood, he decided to call their platelets.While doctors do not really know what platelets.They assumed that these tiny particles serve as a basis for the formation of red blood cells and, unfortunately, did not give them due importance.By the way, in the English literature, the term "platelets" remained, but in the Russian language more than caught the word "platelets".The last name comes from the Greek trombos (clot) and kytos (cell).
What platelets and their role
These particles often have an oval or round shape.Sometimes they look like small stars.Their diameter varies between 1.5-10 microns (1 micron corresponds 10-6 meters).Because of such a small size without a microscope to see what the platelets, it is impossible.If you compare their size with a thickness of a human hair, it would be ten times less.Forming "platelets" of giant cells in the bone marrow.Because of this "factory", they enter the bloodstream, where I live and the size of 8 to 11 days."Wear" platelets go to the liver, spleen and lungs, where it is converted into "raw material" for the construction of other tissues.The main function of these particles is to prevent injury in the event of a large blood loss.To do this, platelets carry their service along the walls of blood vessels, and at the slightest damage to the integrity of the tissue immediately rush to save the body.Slip between them, they form a blood clot, which is like a patch, "glued up" the broken vessel wall, thereby allowing blood to flow out.
Platelets: how it should be?
On average, the majority of people this figure is about 200 units.1 L, while the normal value is in the range from 150 to 300 units.Platelets for surgery or inflammatory diseases (e.g., rubella, hepatitis, SARS) can be increased.In turn, the lack of "platelets" can indicate the presence of leukemia, age-related changes, diabetes, anemia or allergies.To platelet count was always normal, it should be more often in the open air, a healthy lifestyle, focus on traditional medicine.Take care of yourself and enjoy life - for what it is!
