What type of wound is characterized by being cut into the body using knives or razors?

An incision is a type of wound that occurs when the skin or tissue is cut into the body using a sharp instrument, such as a knife or razor. This type of wound is typically clean and well-defined, resulting from a precise, straight-cut motion. Incisions can vary in depth and length, and they often require medical attention to heal properly, especially if they are deep enough to affect underlying tissues.

The context of the other types of wounds helps clarify why "incision" is the correct choice. An abrasion is a superficial injury where the skin is scraped or rubbed off, commonly occurring during falls or scrapes, but does not involve a clean cut. A contusion results from blunt force trauma leading to bruising beneath the skin without breaking the surface. A puncture wound occurs from a sharp object, like a nail or a needle, creating a small hole in the skin; however, it is characterized by depth and point of entry rather than a clean slicing action like that of an incision. Understanding these distinctions highlights how incisions are specifically defined by their sharp cutting nature.