Red Blood Cells, Rouleaux Formation, SEM

Red Blood Cells, Rouleaux Formation, SEM

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Credit: CDC/Science Source/SCIENCE PHOTO LIBRARY

Caption: Color enhanced scanning electron micrograph (SEM) of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 2849x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Some of the erythrocytes are grouped in stacks known as a Rouleaux formation. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells possess no nucleus. What appears to be irregularly-shaped chunks of debris, are actually fibrin clumps, which

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Keywords: biconcave, biconcave cytomorphologic shape, biological, biology, circulatory system, cytology, electron micrograph, em, erythrocyte, fibrin matrix, fibrinous matrix, histology, micrograph, micrography, microscopic, microscopy, physiology, rbc, red blood cell, red blood corpuscle, red cell, rouleaux, rouleaux formation, scanning electron, scanning electron micrograph, sem

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