Which type of injury involves damage to the dermis and deeper layers?

The choice indicating full thickness injury is correct because this type of injury penetrates through the epidermis and the dermis, impacting not only these layers but also the underlying tissues, including subcutaneous fat and potentially deeper structures such as muscle and bone. A full thickness injury is characterized by the complete loss of the skin's layers, which often leads to a higher risk of complications such as infection and requires more extensive healing processes, often including interventions like skin grafting.

In contrast, a partial thickness injury affects only the epidermis and part of the dermis, preserving some deeper layers. This type of injury typically heals through regeneration of the epidermis. A superficial injury, on the other hand, involves only the outer layer of skin (the epidermis), causing minimal damage. Granulation injury is not a recognized classification of skin injuries and may refer more to the healing process that occurs after tissue damage rather than the extent of the injury itself. Understanding these distinctions is vital in assessing wound severity and determining appropriate treatment strategies.