This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
The normal angle of the neck of the femur to shaft is approximately.... 
Select and explain. 
A. 105deg, B. 125deg, C. 145deg, D. 115deg
B: 125deg
Answer: B: 125deg 
Explanation: The normal angle of the neck of the femur to the shaft is approximately 125deg. This is known as neck shaft angle or angle of inclination. This facilitates the movement at the hip joint, enabling the limb to move freely. Ref: Gray's Anatomy The Anatomical Basics of Clinical Practice 41 e pg 1348.