Medicinal leech sucking blood from human arm
Numéro d’image : 11906751
| The medicinal leech Hirudo medicinalis sucking blood from a human arm. Leeches are bloodsucking worms with a flattened body which inhabit fresh water and in tropical countries infest damp forests. They are harmful to people and animals to whom they attach by means of a strong mouth adapted to sucking. The saliva of leeches contains an anticlotting substance,called hirudin,which is injected into the wound before sucking blood. Formerly the Hirudo medicinalis was extensively used to treat many illnesses which were ascribed to excess blood. Today,leeches are sometimes used to drain a haematoma from a wound and as a source of the anti-coagulant hirudin | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Dohrn, Martin |
| Taille de l’image : | 3636 px × 2480 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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