What is the esophagus?

The esophagus is a muscular tube connecting the throat (pharynx) with the stomach. The esophagus is about 8 inches long, and is lined by moist pink tissue called mucosa. The esophagus runs behind the windpipe (trachea) and heart, and in front of the spine.

Explanation:

the tube that your food goes so it can reach your stomach and be digested

Explanation:

answer; (b) i believe the correct answer is : /eliminate health disparities and improve the health of all population groups;