Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question
Take CBT

Question

The lower oesophageal sphincter (LES) prevents:
Options
A Food from entering the duodenum too rapidly
B Acid reflux — stomach contents flowing back into the oesophagus
Correct Answer
C Bile from entering the stomach
D Peristalsis from reversing direction
Correct Answer

Option B is the correct answer.

Detailed Explanation

The lower oesophageal sphincter (LES) controls the passage of food into the stomach and prevents acid reflux by contracting to keep stomach contents from flowing back into the oesophagus.

Hint

This valve-like structure prevents the backward flow of acidic stomach contents.

Question Info

Course: ZOO 101
Topic: ZOO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1098 of 2214
Previous Course Details Next