Anatomy General a003fe4c Structures passing between superior and middle constrictor muscles are A Superior laryngeal vessels, internal laryngeal nerve B Stylopharyngeus muscle, superior laryngeal vessels C Glossopharyngeal nerve, stylopharyngeus muscle D Internal laryngeal nerve, stylopharyngeus muscle High-Yield Explanation Stylopharyngeus muscle and glossopharyngeal nerve are structures passing between superior and middle constrictors of pharynx.