The following table summarizes he gaps in the pharyngeal wall and structures passing through them.
| Gap | Structures passing through them |
| Between the base of skull and the upper concave border of superior constrictor (sinus of Morgagni) | • Auditory tube • Levator palati muscle • Ascending palatine artery • Palatine branch of the ascending pharyngeal artery |
| Between the superior and middle constrictors | • Stylopharyngeus muscle • Glossopharyngeal nerve |
| Between the middle and inferior constrictors | • Internal laryngeal nerve • Superior laryngeal vessels |
| Between the lower border of inferior constrictor and the esophagus (in the tracheoesophageal groove) | • Recurrent laryngeal nerve • Inferior laryngeal vessels |
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