CNA Practice Test
Body systemsQuestion 773 of 1700

What is the esophagus?

  1. A flap that covers the trachea during swallowing
  2. A tube that runs from the nose to the lungs
  3. A muscular tube to the stomach
  4. The organ in which nutrients are absorbed
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Correct answer: A muscular tube to the stomach

The esophagus carries food to the stomach.

Source: Nursing Assistant (Reuter), 11.3: Digestive System

Practice body systems

Questions last reviewed: 18 October 2026