Question

question 8
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what is the purpose of the lower pyloric sphincter?

it produces bile salt.

it allows food to pass through from the small intestine to the large intestine.

it allows food to pass through from the stomach to the small intestine.

it allows food to pass through from the mouth into the esophagus.

Explanation:

• The first option is incorrect because bile salts are produced by the liver (and stored in the gallbladder), not by the pyloric sphincter.
• The second option describes the function of the ileocecal valve (which allows passage from the small intestine to the large intestine), not the pyloric sphincter.
• The third option is correct. The pyloric sphincter is located at the junction of the stomach and the small intestine (duodenum) and its role is to regulate the passage of partially digested food (chyme) from the stomach into the small intestine.
• The fourth option describes the function of the upper esophageal sphincter (which allows food to pass from the mouth to the esophagus), not the pyloric sphincter.

Answer:

C. It allows food to pass through from the stomach to the small intestine.