Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question

Question

Food moves through the oesophagus via which mechanism?
Options
A Gravity alone
B Peristalsis — rhythmic muscular contractions
Correct Answer
C Ciliary movement
D Osmotic pressure
Correct Answer

Option B is the correct answer.

Detailed Explanation

Food moves through the oesophagus via peristalsis, which are rhythmic, wave-like muscular contractions that propel food toward the stomach. This occurs even when lying down, demonstrating that gravity is not essential.

Hint

These coordinated muscular contractions push food along the digestive tract regardless of body position.

Question Info