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False-colour SEM of a clot occuring in human blood

False-colour SEM of a clot occuring in human blood

P260/0001

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51.1 MB (4.3 MB compressed)

4654 x 3835 pixels

39.4 x 32.5 cm ⏐ 15.5 x 12.8 in (300dpi)

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Credit

PHOTO INSOLITE REALITE / SCIENCE PHOTO LIBRARY PHOTO INSOLITE REALITE / SCIENCE PHOTO LIBRARY

Caption

False-colour scanning electron micrograph (SEM) of a clot (thrombus) occurring in human blood, showing the netork of pink threads, composed of the insoluble substance fibrin. Fibrin formation during clotting is complex. The release of thromboplastin from an injured vessel & surround- ing platelets, in the presence of calcium ions, causes the conversion of prothrombin to thrombin. This results in the transformation of the blood protein fibrinogen into threads of fibrin which bind the clot. Also present are red blood cells (orange biconcave discs), which become deformed (crenated) in the concentrated plasma environment of the clot. Magnification: x1250 at 35mm size.

Release details

Model release not required. Property release not required.

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