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: Anatomy
Medial rotation of tibia in flexed leg is brought about by- 
Select and explain. 
A. Popliteus, B. Vastus medialis, C. Quadriceps femoris, D. Adductor magnus
A: Popliteus
Answer: A: Popliteus 
Explanation: Medial rotation of flexed knee occurs by
-        Popliteus
-        Semimembranosus
-        Semitendinosus