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: Unknown
All the following extra ocular muscles are supplied by 3rd nerve except: 
Select and explain. 
A. Lateral rectus, B. Medial rectus, C. Superior rectus, D. Inferior oblique
A: Lateral rectus
Answer: A: Lateral rectus 
Explanation: Ans: A (Lateral rectus) Ref: Gray's Anatomy. 39th edition. 2008.Page 693Explanation:Oculomotor nerve ( 3rd nerve) has 2 divisions (superior & inferior) supplies the following muscles:Levator palpebrae superioris (superior division)Superior rectus (superior division)Medial rectus (inferior division)Inferior rectus (inferior division)Inferior oblique (inferior division)Superior oblique is supplied by trochlear nerve (4th nerve)Lateral rectus is supplied by abducens nerve (6th nerve)Mnemonics for nerve supply to extraocular muscles: SO4LR6R3 (SO-sup oblique, LR- lateral rectus, R-remaining muscles)