Medicinal Leech #2 Photograph by Louise Murray/science Photo

Medicinal Leech #2 is a photograph by Louise Murray/science Photo Library which was uploaded on September 30th, 2018. The photograph may be purchased as wall art, home decor, apparel, phone cases, greeting cards, and more. All products are produced on-demand and shipped worldwide within 2 - 3 business days.
Medicinal leech. Hands holding a medicinal leech (Hirudo medicinalis). Leeches are parasites that feed on blood. They attach themselves to the skin using suckers and create a wound with three sharp jaw plates, which contain over 600 teeth. Their saliva contains hirudin, a chemical which prevents blood from clotting. A normal wound may bleed for up to 20 minutes before clotting, but a leech wound can bleed for up to 10 hours. Leeches are used in modern medicine to drain blood from haematomas (accumulations of blood) and to draw blood into transplanted tissues until circulation is established. Photographed at BioPharm Ltd, Wales, UK.

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