What is the medical term meaning scrape of skin in which tiny blood vessels epidermis or outer layer break?

The medical term is "abrasion". It refers to a skin injury in which the outer layer of the skin (epidermis) is scraped or worn away, exposing the underlying layers of skin and causing minor bleeding. Abrasions can occur due to friction, rubbing, or scraping against a rough surface and are frequently caused by falls, accidents, or contact with rough objects. Treatment typically involves cleaning the wound, applying antibiotic ointment, and covering it with a bandage to aid healing and prevent infection.