What type of wound is characterized as closed with blood from broken vessels accumulating in the tissues?

A contusion is characterized by being a closed wound where blood from broken vessels accumulates in the tissues, leading to discoloration and swelling. This type of wound typically occurs due to a blunt force trauma that does not break the skin, resulting in bruising. In a contusion, the body's tissues sustain damage, causing tiny blood vessels to rupture and leak blood into the surrounding area, hence the accumulation.

In contrast, a surgical incision is a type of open wound where the skin is cut intentionally, generally during a surgical procedure, with the edges of the wound being clean and straight. An avulsion involves the forcible separation of a piece of skin or other tissues, leading to a flap or complete removal, making it a more complex wound type. A puncture is a small but deep wound caused by a pointed object that penetrates the skin, but it does not typically involve the accumulation of blood in the tissues in the same way a contusion does.