This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
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: Most of the blood supply to the head and neck of femur is supplied by the medial circumflex femoral aery, its retinacular and epiphyseal branches included. Medium circumflex femoral aery is an aery that branches from the deep femoral aery and it supplies the medial pa of the thigh and hip joint muscles. Ref: Merriam Websters medical dictionary, by Merrium Webster, Page 400; Campbell's Operative Ohopaedics 10th/2908.