What occurs in an avulsion?

An avulsion is characterized by a body part being completely torn away from its normal position. This type of injury involves a significant amount of damage and typically results in severe blood loss and the possibility of significant tissue damage. In cases of avulsion, the body part, such as a finger or ear, may be entirely detached, leading to immediate medical attention to control bleeding and preserve the avulsed part, if possible.

The other options describe different types of injuries. Scraping of skin refers to abrasions, where the top layer of skin is removed but not torn away from the body. A wound caused by a blunt object typically refers to contusions or bruises rather than an avulsion, which is more severe. A clean incision is indicative of a cut made by a sharp object, which doesn't reflect the traumatic nature of an avulsion. Therefore, the definition and characteristics of an avulsion, which involves complete detachment, make the correct answer appropriate in this context.