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
Sinus of Morgagni is between: 
Select and explain. 
A. Middle constrictor and inferior constrictor, B. Middle constrictor and superior constrictor, C. Superior constrictor and skull, D. None of the above
C: Superior constrictor and skull
Answer: C: Superior constrictor and skull 
Explanation: Sinus of Morgagni is a gap between the base of skull and the upper concave border of superior constrictor muscle.
Structures passing through that are: Auditory tube, levator palati muscle, ascending palatine artery and palatine branch of the ascending pharyngeal artery.