SEM of Red Blood Cells

Bildnummer 12004965
SEM of Red Blood Cells
Scanning electron micrograph (SEM) of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular catheter; 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. 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. In their adult phase,these cells possess no nucleus. What appears to be irregularly-shaped chunks of debris,are actually fibrin clumps,which when inside the living organism,functions as a key component in the process of blood clot formation,acting to entrap the red blood cells in a mesh-like latticework of proteinaceous strands,thereby,stabilizing and strengthening the clot,in much the same way as rebar acts to strengthen,and reinforce cement
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Camazine, Scott
Bildgröße: 5103 px × 3469 px
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