Fracture described as a fracture that is not open to the outside environment.

• A. Linear fracture
• B. Oblique fracture
• C. Greenstick fracture
• D. Simple fracture

Answer: (D)

The key idea is whether the fracture communicates with the outside environment. If the skin remains intact, the fracture is described as simple (also called closed). This term specifically denotes no wound or opening to the outside world, which is what the question is asking about. An open fracture would mean there is a wound that communicates with the fracture site, increasing infection risk and usually requiring more urgent management.

The other terms describe the fracture’s pattern or direction (linear, oblique, greenstick) and do not specify whether the skin is breached. A simple fracture can have any of these patterns, as long as the skin is intact.