Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Blood clotting. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes, red) and platelets (thrombocyte, white) forming a blood clot. Clots are formed in response to cardiovascular disease or injuries to blood vessels. Platelets secrete chemicals that promote the accumulation of fibrin (not seen) and other blood components required for clot formation. Magnification: x7000 when printed 10cm wide.

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Keywords: aggregate, biconcave, biological, biology, black background, blood, cell, cells, clot, clotting, colored, coloured, erythrocyte, erythrocytes, false-coloured, formation, forming, haematological, haematology, haemoglobin, healthy, hematological, hematology, hemoglobin, human, microscopy, normal, platelet, platelets, rbc, rbcs, red blood cell, scanning electron micrograph, scanning electron microscope, sem, thrombocyte, thrombosis, thrombus

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Blood clotting, SEM

K003/2782 Royalty Free

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Duration: 00:00:12

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 427.1M

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Capture format: Digital Rostrum

Codec: JPEG

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