<prompt> Sinus of Morgagni is between:Middle constrictor and inferior constrictorMiddle constrictor and superior constrictorSuperior constrictor and skullNone of the above  <response>: 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. 