Which term describes the main digestive tract from mouth to anus?

Which term describes the main digestive tract from mouth to anus?

• A. Alimentary canal
• B. Mouth
• C. Stomach
• D. Esophagus

Answer: (A)

The alimentary canal is the continuous tube that runs from the mouth to the anus, through which food passes and is digested. It includes the mouth, pharynx, esophagus, stomach, small intestine, and large intestine, all connected in one long passage. This term uniquely describes the entire digestive tract rather than any single organ. The other options point to specific parts—the mouth is just the entry point, the stomach is one organ, and the esophagus is another segment—so they don’t capture the full tract like the alimentary canal does.

The alimentary canal is the continuous tube that runs from the mouth to the anus, through which food passes and is digested. It includes the mouth, pharynx, esophagus, stomach, small intestine, and large intestine, all connected in one long passage. This term uniquely describes the entire digestive tract rather than any single organ. The other options point to specific parts—the mouth is just the entry point, the stomach is one organ, and the esophagus is another segment—so they don’t capture the full tract like the alimentary canal does.