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After a medical condition like gangrene, blood vessels can initiate a repair process through a series of biological responses. When an artery is severed, the body triggers clot formation to prevent further blood loss and activates the healing process. Endothelial cells proliferate and migrate to cover the wound, while growth factors promote the formation of new blood vessels (angiogenesis) to restore blood flow. Additionally, surrounding tissues may contribute to the repair by providing necessary nutrients and signals for healing.

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