In this website http://www.webmd.com/heartburn-gerd/your-digestive... it says that the throat is also called, Also called the pharynx, the throat is the next destination for food you've eaten. From here, food travels to the esophagus or swallowing tube. The esophagus is a muscular tube extending from the pharynx to the stomach. By means of a series of contractions, called peristalsis, the esophagus delivers food to the stomach. The stomach is a sac-like organ with strong muscular walls. In addition to holding the food, it's also a mixer and grinder. The stomach secretes acid and powerful enzymes that continue the process of breaking down the food.Made up of three segments, the duodenum, jejunum, and ileum, the small intestine is a long tube loosely coiled in the abdomen (spread out, it would be more than 20 feet long). The small intestine continues the process of breaking down food by using enzymes released by the pancreas and bile from the liver.The digestive system works very closely with the circulatory system to get the absorbed nutrients distributed through your body. The circulatory system also carries chemical signals from your endocrine system that control the speed of digestion.
The digestive system also works in parallel with your excretory system (kidneys and urination). While the digestive system collects and removes undigested solids, the excretory system filters compounds from the blood stream and collects them in urine. They are closely connected in controlling the amount of water in your body.
The process of digestion seems deceptively simple: Matter moves into the body and continues down a conveyer beltlike chain of organs that break it down completely before it leaves the body. Yet the maintenance of such a system is complex and relies on a balance of pH and helpful bacteria to maintain homeostasis
Read more : http://www.ehow.com/how-does_4565570_digestive-system-maintain-homeostasis.html
This can happen in the digestive system. Constipation- When you have less than three bowel movements a week