Question

Match the following structure of the stomach with its description: Gastroesophageal sphincter

a) Prevents backflow of stomach contents into the esophagus
b) Controls the release of chyme into the small intestine
c) Secretes gastric juice
d) Absorbs nutrients

Answer 1

The gastroesophageal sphincter prevents backflow of stomach contents into the esophagus.

Step-by-step explanation:

The gastroesophageal sphincter is the structure of the stomach that prevents backflow of stomach contents into the esophagus. This sphincter opens to let food into the stomach and then closes to prevent food from passing back into the esophagus. Its main function is to ensure that stomach acid and food do not flow back up into the esophagus, which can cause discomfort and damage.