in Immunology, Physiology

Human Blood Cells

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Comparison of a human red blood cell, a white blood cell and a platelet. SEM X2500 Image Credit: Dr. Stanley Flegler

Blood consists of 3 types of cells, suspended in a liquid called plasma. These three types of cells, red blood cells (RBC), white blood (WBC) cells and platelets perform different functions throughout the body. RBC’s transport oxygen to cells and is doughnut shaped.  WBC’s play major role in our immune system, and appears usually in spherical shape. Platelet are cell fragments and they help in blood clotting. This is a Scanning Electron Microscopic Image of Human RBC, WBC and Platelet.

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Written by Josin Tharian

Assistant Professor of Zoology by profession.

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