This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Joints, Subject name: Anatomy
Which bone is most commonly fractured in the arrow marked area? 
Select and explain. 
A. Lunate, B. Scaphoid, C. Triquetral, D. Trapezoid
B: Scaphoid
Answer: B: Scaphoid 
Explanation: Ans. B. ScaphoidThe arrow marked structure is anatomical snuff box. Its floor is formed by scaphoid which is a commonly fractured carpal bone.