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Blood Prepared 3 student lab/teheh 9-1: Potapkina Valentine Руководитель:Шиповская Л.Б
Blood Blood - a type of connective tissue composed of fluid intercellular substance of complex composition and suspended therein cells - blood cells: red blood cells, white blood cells and platelets.
Blood corpuscles Red blood cells White blood cells Platelets
Red blood cells Erythrocytes, or red blood cells, - a small (7-8 mm diameter) nonnucleated cells biconcave disk shaped. The absence of the kernel allows the erythrocytes contain large amounts of hemoglobin, and the shape increases its surface.
function of red blood cells The function of erythrocytes is to transport of oxygen and carbon dioxide partial. This function is performed due to the presence of red blood cells is their hemoglobin.
White blood cells White blood cells, or white blood cells - colorless blood cells in diameter 8-30 microns, unstable form with the core; The normal white blood cell count - 6-8 thousand. 1 mm3. Leukocytes are produced in the bone marrow, liver, spleen, lymph nodes; their life expectancy can range from a few hours (neutrophils) to 100-200 and more days (lymphocytes).
The function of white blood cells The main function of white blood cells - the body's defense against bacteria, foreign proteins, foreign bodies
Type of white blood cells Eosinophils absorb and neutralize allergens or toxins parasites (viruses, bacteria, protozoa, flat and round worms). Lymphocytes produce antibodies that make the body immune to infectious diseases. Neutrophils and monocytes are able to actively acquire and absorb bacteria cell fragments, particles.
Platelets Platelets or platelets - colorless cells 2-4 microns in size, the amount of which is 200-400 thousand. 1 mm3 of blood. They are formed in the bone marrow.
platelet function Are actively involved in the clotting process, hemostasis. This is the main function of platelets.
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