Which tube connects the mouth to the stomach?

Which tube connects the mouth to the stomach?

• A. Esophagus
• B. Pharynx
• C. Trachea
• D. Intestine

Answer: (A)

The main idea is the pathway that carries swallowed material from the mouth down to the stomach. Swallowed food is moved through the esophagus, a muscular tube that uses rhythmic contractions called peristalsis to transport it to the stomach. The esophagus directly connects the mouth to the stomach, making it the key conduit in this part of digestion. The pharynx is a funnel-shaped region that channels food from the mouth toward the esophagus, but it is not the tube that travels all the way to the stomach. The trachea is the airway to the lungs, not part of digestion. The intestines come into play farther along after the stomach. So the correct tube is the esophagus.

The main idea is the pathway that carries swallowed material from the mouth down to the stomach. Swallowed food is moved through the esophagus, a muscular tube that uses rhythmic contractions called peristalsis to transport it to the stomach. The esophagus directly connects the mouth to the stomach, making it the key conduit in this part of digestion.

The pharynx is a funnel-shaped region that channels food from the mouth toward the esophagus, but it is not the tube that travels all the way to the stomach. The trachea is the airway to the lungs, not part of digestion. The intestines come into play farther along after the stomach. So the correct tube is the esophagus.