AP BIOLOGY

Detailed explanation-1: -In fact, because of peristalsis, food can move through the esophagus no matter what position you are in-even upside down! Just don’t try to swallow food when you are upside down-you could choke!

Detailed explanation-2: -3. You Can Eat Upside Down. Food doesn’t need gravity to reach your stomach. When you eat something, the muscles in your esophagus constrict and relax in a wavelike manner, which is called peristalsis and pushes food along the esophagus and into the stomach.

Detailed explanation-3: -Yes, you can drink upside down, as long as you have an intact and healthy esophagus. Esophagus moves down your bolus to your stomach. It gets some help from gravity but the main propagator is its peristaltic motion, which by itself can move water towards your stomach even if you are upside down.

Detailed explanation-4: -The esophagus is positioned behind the windpipe and in front of the spine. A muscular squeezing action pushes the food along the esophagus. The muscular pushing allows people to swallow and move food through the digestive tract when they are lying on their sides, or even when they are upside down.