1 Related Resources Above-Knee Amputation Lower-limb amputation is a surgical procedure performed to remove a limb that has been damaged due to trauma or disease. 2  Find a PT Search our national database of physical therapists.
Food is moved through the pharynx and then enters the esophagus. This is the muscular tube that connects the throat to the stomach. Your esophagus is about 10 inches long, and it acts only as a passageway for food and drink. The esophagus passes behind the airway to the lungs and in front of the spinal column. It pierces the diaphragm before reaching the stomach. Food moves through your esophagus by a wavelike series of muscular contractions called peristalsis.
Propulsion. Two types of movements are responsible for moving food from your stomach to your intestines. The first is called propulsion -- moving your food forward, from your esophagus into your stomach and from your stomach to your small intestine. This movement requires a lot of muscle. Think about propulsion like squeezing a toothpaste tube. When you squeeze at the top, the toothpaste moves down.