<prompt> Main blood supply to the head and neck of femur comes from-Lateral circumflex femoral aeryMedial circumflex femoral aeryAery of Ligamentum TeresPopliteal aery  <response>: The medial circumflex femoral aery along with its retinacular and epiphyseal branches supplies most of the blood supply to the head and neck of femur. Ref: snells 8the p.561 