A person with cricopharyngeal dysfunction may experience difficulty swallowing or a feeling of something being stuck in their throat. This is because the sphincter does not open properly. Treatment ...

Retrograde cricopharyngeal dysfunction is a medical condition that causes an inability to burp. This can result in excess gas and discomfort in the chest or throat. “Retrograde cricopharyngeal ...

At rest, closure of the upper esophageal sphincter (UES) is due to passive forces as well as active muscle contraction, and its relaxation requires inhibition of the cricopharyngeus and contraction of ...