Which structures pass through the pharyngeal wall above the superior constrictor?

Which structures pass through the pharyngeal wall above the superior constrictor?

• A. Auditory tube, Levator veli palatini
• B. Auditory tube, Tensor veli palatini
• C. Palatine tonsil, Stylopharyngeus
• D. Internal carotid artery, Internal jugular vein

Answer: (A)

The structures that pass through the pharyngeal wall in the region just above the superior constrictor are those associated with the nasopharynx and the auditory tube. The pharyngotympanic (auditory) tube opens into the nasopharynx at this level, and the levator veli palatini runs in this vicinity, forming part of the wall around the opening. The levator veli palatini elevates the soft palate and also helps open the auditory tube during swallowing or yawning, so it lies in the region above the constrictor where the tube itself enters the nasopharynx. In contrast, the tensor veli palatini mainly acts to open the auditory tube by wrapping around the hamulus and its path is not through the wall above the superior constrictor in the same way. Other structures listed—such as the palatine tonsil or stylopharyngeus—reside lower, within or between the constrictors, and the internal carotid artery and internal jugular vein lie in the neck rather than traversing the pharyngeal wall above the superior constrictor.

The structures that pass through the pharyngeal wall in the region just above the superior constrictor are those associated with the nasopharynx and the auditory tube. The pharyngotympanic (auditory) tube opens into the nasopharynx at this level, and the levator veli palatini runs in this vicinity, forming part of the wall around the opening. The levator veli palatini elevates the soft palate and also helps open the auditory tube during swallowing or yawning, so it lies in the region above the constrictor where the tube itself enters the nasopharynx.

In contrast, the tensor veli palatini mainly acts to open the auditory tube by wrapping around the hamulus and its path is not through the wall above the superior constrictor in the same way. Other structures listed—such as the palatine tonsil or stylopharyngeus—reside lower, within or between the constrictors, and the internal carotid artery and internal jugular vein lie in the neck rather than traversing the pharyngeal wall above the superior constrictor.