What term should be used to describe a closed head injury?

• A. Crushing trauma
• B. Open trauma
• C. Blunt trauma
• D. Diffuse injury

Answer: (C)

A closed head injury refers to a type of brain injury where the skull remains intact and there is no penetration to the brain tissue, typically caused by a blunt force. The term "blunt trauma" accurately describes this scenario, as it encompasses injuries resulting from impact with a solid object without breaking the skin or skull. Blunt trauma can occur due to various accidents, such as falls or collisions, and it can lead to concussions, contusions, and other types of brain injuries without external wounds.

Other terms provided do not fit the context of a closed head injury appropriately. For instance, "crushing trauma" usually pertains to injuries where a significant force compresses body parts, potentially leading to more severe damage than just a closed head injury. "Open trauma" specifically indicates situations where there is a break in the skull or passage of foreign objects into the brain, which is not applicable here. “Diffuse injury” is a term often used to describe widespread brain damage, like in cases of diffuse axonal injury, but does not specifically refer to the mechanism of injury as clearly as blunt trauma does. Thus, blunt trauma is the most accurate descriptor for a closed head injury.