Which organ is part of the digestive system?

Prepare for the Missouri State CMT Test. Study with comprehensive materials including flashcards and multiple choice questions. Each quiz question provides hints and explanations to ensure you're exam-ready!

Multiple Choice

Which organ is part of the digestive system?

Explanation:
The main idea tested here is recognizing which organs belong to the digestive system and how they function. The esophagus is a muscular tube that carries swallowed food from the mouth down to the stomach through waves of contraction known as peristalsis. This transport is a direct part of digestion. The other organs listed belong to different systems: the heart is part of the circulatory system, the brain is part of the nervous system, and the lungs are part of the respiratory system. So the esophagus fits the digestive role, making it the correct choice.

The main idea tested here is recognizing which organs belong to the digestive system and how they function. The esophagus is a muscular tube that carries swallowed food from the mouth down to the stomach through waves of contraction known as peristalsis. This transport is a direct part of digestion. The other organs listed belong to different systems: the heart is part of the circulatory system, the brain is part of the nervous system, and the lungs are part of the respiratory system. So the esophagus fits the digestive role, making it the correct choice.

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