The digestive system extends from which structures?

The digestive system extends from which structures?

• A. Mouth to anus
• B. Esophagus to rectum
• C. Oral cavity to stomach
• D. Pharynx to cecum

Answer: (A)

The digestive system’s main passage runs from where food enters to where waste exits. The alimentary canal begins at the mouth and ends at the anus, with the tube passing through the esophagus, stomach, small intestine, and large intestine along the way. Accessory organs like the liver and pancreas help digestion but are not part of the digestive tract’s path itself. So, mouth to anus correctly defines the extent of the digestive system. The other options cut off parts of this path or start/end at different points, leaving out sections of the actual tract.

The digestive system’s main passage runs from where food enters to where waste exits. The alimentary canal begins at the mouth and ends at the anus, with the tube passing through the esophagus, stomach, small intestine, and large intestine along the way. Accessory organs like the liver and pancreas help digestion but are not part of the digestive tract’s path itself. So, mouth to anus correctly defines the extent of the digestive system. The other options cut off parts of this path or start/end at different points, leaving out sections of the actual tract.