This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nerves of Lower Extremity, Subject name: Anatomy
Femoral nerve supplies all except - 
Select and explain. 
A. Pectineus, B. Sartorius, C. Vastus medialis, D. Obturatorextemus
D: Obturatorextemus
Answer: D: Obturatorextemus 
Explanation: Ans. is 'd' i.e., Obturator externuso Branches of femoral nerve areFrom the main trunk Nerve supply to iliacus, nerve supply to pectineus and a few vascular branches.From anterior division :- Intermediate femoral cutaneous nerve (intermediate cutaneous nerve of thigh ), medial femoral cutaneous nerve (medial cutaneous nerve of thigh) and muscular branch to sartorius.3) Fromposteior division Saphenous nerv e, nerve supply to quadriceps femoris (rectus femoris, vastus medialis. vastus lateralis, vastus intermedius).4) Articular supply :- Hip joint is supplied by nerve to rectus femoris; knee joint is supplied by nerve to three vasti.