See Also: sphincter of the pharyngeal isthmus(medicine)
pharyngeal isthmus(medicine)
pharyngeal branch of the ascending pharyngeal artery(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
isthmus of His(medicine)
ISTHMUS(law)
Isthmus(health)
isthmus(dictionary)
isthmus(medicine)

sphincter of the pharyngeal isthmus (medicine)


sphincter of the pharyngeal isthmus -->
palatopharyngeal sphincter


A constant band of the superior pharyngeal constrictor muscle which sweeps posteriorly from the anterolateral part of the superior surface of the palatine aponeurosis. It creates a visible ridge when the superior constrictor is contracted, meeting the elevated soft palate to seal off the pharyngeal isthmus during swallowing.

Synonym: pharyngeal ridge, sphincter of the pharyngeal isthmus, velopharyngeal sphincter.