Lung alveoli and red blood cells. Coloured transmission electron micrograph (TEM) of a section through lung alveoli (white) and red blood cells (red). Alveoli are the site of gaseous exchange in the lungs,where oxygen is taken up by the red blood cells and carbon dioxide released for exhalation out of the body. The alveolar walls are lined with a one-cell thick layer of epithelium,gas exchanging tissue,that oxygen must pass through to reach the blood. Seen here: pneumocytes,capillaries and capillary endothelial cells | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Biophoto Associates |
Bildgröße: | 3960 px × 4410 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
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