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
Which nucleus is under facial colliculus? 
Select and explain. 
A. Facial, B. Glossopharyngeal, C. Abducent, D. Trigeminal
C: Abducent
Answer: C: Abducent 
Explanation: Ans. is 'c' i.e., Abducent o Facial colliculus is a small elevation in the pons, produced by genu (recurring fibers) of facial nerve looping around (covering) abducent nucleus. o Facial colliculus produces medial eminence on each side of median sulcus in 4th ventricle.