Blood cells, SEM

Numéro d’image : 12526458
Blood cells, SEM
Blood cells. Coloured scanning electron micrograph (SEM) of two erythrocytes (red blood cells) and a granulocyte (white). Granulocytes are a category of white blood cell characterized by the presence of enzyme-containing granules in their cytoplasm. They are part of the body's immune system. Erythrocytes are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels. The nucleus and other organelles are lost as the cells mature. The cell's interior is packed with haemoglobin, a red iron-containing pigment that has an oxygen-carrying capacity. The main function of red blood cells is to distribute oxygen to body tissues and to carry waste carbon dioxide back to the lungs. Magnification: x6250 when printed at 10 centimetres wide.
Licence : Droits gérés
Crédit: Science Photo Library / EYE OF SCIENCE
Taille de l’image : 4525 px × 3898 px
Model Release : Non requis
Property Release : Non requis
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  • All moral rights asserted. Recolouring or alteration of the image is prohibited without permission.

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