SEM of blood cells

SEM of blood cells

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Caption: Blood cells. Scanning electron micrograph (SEM) of three types of blood cell. They are: red blood cells (erythrocytes, red), white blood cells (lymphocytes, blue) and platelets (thrombocytes, pink). The platelets are within a mesh of fibrin (light brown), the protein that traps blood cells at a wound, forming a clot. Platelets are membrane bound cell fragments from the bone marrow which cause fibrin to form at wounds. Red blood cells carry oxygen around the body, their biconcave shape providing a maximum surface area for the exchange of gases. White blood calls are a vital part of the immune system. Magnification: x4,500 at 5x7cm size. x15,400 at 6.5x9.5".


Keywords: anatomy, blood cell, blood cells, cells, erythrocyte, fibrin, human body, lymphocyte, mixed, platelet, red blood cells, scanning electron micrograph, sem, thrombocyte, white blood cell
