This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: Anatomy
Nerve supply of stapedius is: 
Select and explain. 
A. 2nd nerve, B. 3rd nerve, C. 5th nerve, D. 7th nerve
D: 7th nerve
Answer: D: 7th nerve 
Explanation: Ans. is 'd' i.e. 7th C.N. Muscles of the ossicles in middle ear : Stapedius - N.S. is VII CN Tensory Tympanis - N.S. is Mandibular nerve (a br. of trigeminal (V) CN).