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
Obturator nerve innervates all of the following muscles except 
Select and explain. 
A. Adductor longus, B. Pectineus, C. Obturator internus, D. Obturator externus
C: Obturator internus
Answer: C: Obturator internus 
Explanation: Obturator nerve innervates
-        Muscular branches
o   Anterior division

Pectineus
Adductor longus
Adductor brevis
Gracillis

o   Posterior division

Obturator externus
Adductor magnus

-        Articular branches
o   Anterior division

Hip joint

o   Posterior division

Knee joint

-        Vascular branches
o   Anterior division

Femoral artery