Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake. These cells contain haemoglobin, a pigment that allows them to carry oxygen around the body. Non-mammalian red blood cells (such as these) are oval (discoid) in shape and contain a cell nucleus. Human red blood cells are disc-shaped and do not have a cell nucleus. Magnification: x3000 when printed 10 centimetres wide. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Gschmeissner, Steve |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |