See Also: velopharyngeal sphincter(medicine)
velopharyngeal(dictionary)
velopharyngeal(medicine)
velopharyngeal closure(medicine)
velopharyngeal insufficiency(medicine)
velopharyngeal seal(medicine)
Sphincter(medicine)
sphincter(dictionary)
sphincter(dictionary)
Sphincter(health)

succussation (iou) and velopharyngeal sphincter (medicine)


succussation (iou)



succussation noun.M17-L18.
[medieval Latin succussatio(n-), from Latin succussat- pa. ppl stem of succussare frequentative of succutere: see SUCCUSSION, -ATION.]
Shaking up, violent shaking; jolting, trotting; an instance of this.

velopharyngeal sphincter (medicine)


velopharyngeal sphincter -->
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.