This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvis and Hip injuries, Subject name: Orthopaedics
Main blood supply to the head and neck of femur comes from 
Select and explain. 
A. Lateral circumflex femoral Aery, B. Medial circumflex femoral Aery, C. Aery of Ligamentum Teres, D. Popliteal Aery
B: Medial circumflex femoral Aery
Answer: B: Medial circumflex femoral Aery 
Explanation: Main blood supply to the head of the femur in adults is the lateral ascending cervical or retinacular & epiphyseal branches of the medial circumflex femoral aery. It also receives supply from lateral circumflex femoral aery & branch of obturator aery. Ref: BD Chaurasia, Volume 2 , 6Th edition, page no: 69