Red blood cells and platelets,SEM

Numéro d’image : 11960114
Red blood cells and platelets,SEM
Red blood cells and platelets. Coloured scanning electon micrograph (SEM) of human erythrocytes (red blood cells) and a platelet aggregate (yellow-green). Platelets are fragments of white blood cells that under normal circumstances are small and biconcave in form. However,if there is a break in the surface of a blood vessel the platelets come into contact with molecules they are not used to and become activated. They become amorphous in form,with long projections (pseudopodia) that help them adhere to other cells and each other,forming a clot. Magnification: x4000 when printed at 10 centimetres wide
Licence : Droits gérés
Crédit: Science Photo Library / Gschmeissner, Steve
Taille de l’image : 4850 px × 3879 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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