Parasite's mouth. Coloured scanning electron micr- ograph (SEM) of red blood cells (red) in the mouth of a Schistosoma mansoni fluke,a parasite causing the disease bilharzia (schistosomiasis). It lives in the veins of the intestines and bladder of humans. It feeds on blood cells,attaching itself to blood vessel walls using a suction pad (not seen). Females lay eggs which are excreted in urine and faeces into lakes and rivers. In water snails,they develop into forms which can penetr- ate human skin,spreading the disease. Bilharzia is endemic in tropical countries,and causes liver and kidney damage if untreated. It is treatable with drugs. Magnification: x830 at 6x7cm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NIBSC |
Bildgröße: | 2640 px × 2130 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |