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The vascular lesions caused by leeches on the blood vessels of their host cause blood to...

The vascular lesions caused by leeches on the blood vessels of their host cause blood to coagulate naturally. How does the leech solve the problem of the ingested blood potentially coagulating inside its body?

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Ingested blood does not coagulate in the leech (Hirudo medicinalis) due to the fact a mighty anticoagulant substance is contained in its saliva. This substance is a protein called hirudin.

in the beyond, leeches have been normally used as a scientific treatment. nowadays, hirudotherapy is used in patients with considerable and continual irritation of the skin, as a prevention for tissue necrosis after some surgeries and in several others fields of medication.

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