What event triggers the opening of the gastroesophageal sphincter?

Peristalsis in the Esophagus event triggers the opening of the gastroesophageal sphincter.

Explanation:

In the esophagus, there are two types of peristalsis occurs.The first one is a "primary peristaltic wave" occurs through which bolus enters esophagus during swallowing. This "wave pushes the bolus down esophagus", into stomach in a wave lasting about 8–9 seconds.The esophageal sphincter in the lower region is separated by both sympathetic and parasymphathetic nerves. The pathways of vagal are a major for the relaxation of reflex of LES and this occurs in LES relaxations.

Where are the choices?

Paramedic. The Paramedic is an allied health professional whose primary focus is to provide advanced emergency medical care for critical and emergent patients who access the emergency medical system. This individual possesses the complex knowledge and skills necessary to provide patient care and transportation