What is the Lower Esophageal Sphincter Called?

Question

What is the lower esophageal sphincter called?​
A)​pharyngoesophageal sphincter
B)gastric sphincter
C)oropharyngeal sphincter
D)gastroesophageal sphincter
E)​peristaltic sphincter

Accepted Answer

The lower esophageal sphincter is also known as the gastroesophageal sphincter, as it separates the esophagus from the stomach. Option A (pharyngoesophageal sphincter) refers to the upper esophageal sphincter located near the pharynx. Option B (gastric sphincter) is a more general term that can refer to several sphincters found in the stomach. Option C (oropharyngeal sphincter) is not related to the esophagus but refers to the muscles in the oropharynx that help with swallowing. Option E (peristaltic sphincter) is not a specific term used in anatomy and physiology.

What is the lower esophageal sphincter called?​

What is the lower esophageal sphincter called?