the Digestive System

need it, the bile travels into the gallbladder, where it awaits the signal from the intestines that food is present. Your digestive system performs amazing feats every day, whether you eat a double cheeseburger or a stalk of celery. This process, called digestion, allows your body to get the nutrients and energy it needs from the food you eat. But it's still in your stomach sort of like a science experiment that happens all the time! The anus is surrounded by sphincter muscles that are important in allowing control of stool. It lets you know whether the contents are liquid, gas, or solid. Stop 3: The Stomach and Small Intestine The stomach is a sac-like organ with strong muscular walls. And the digestive system will be busy at work on your chewed-up lunch for the next few hours or sometimes days, depending upon what you've eaten. The lining of the upper anus is specialized to detect rectal contents. But what happens to that sugar once you swallow it?

Instead, muscles in the walls of the esophagus move in a wavy way to slowly squeeze the food through the esophagus. It is made up of a series of muscles that coordinate the movement of food and other cells that produce enzymes and hormones to aid in the breakdown of food.

The Human Digestive System Interactive anatomy images teach you all about the stomach, liver, gallbladder, appendix and the other digestive system organs. The human digestive system consists of the gastrointestinal tract plus the accesso ry organs of digestion In this system, the process of digestion has many stages. The digestive system breaks down the food you eat. Learn how in this article for k ids. Just how do we digest our food?

If they can, the sphincters relax and the rectum contracts, expelling its contents. The colon is a 6-foot long muscular tube that connects the small intestine to the rectum. Your tongue helps out, pushing the food around while you chew with your teeth. Gallbladder The gallbladder is a storage sac for excess bile. Your food may spend as long as 4 hours in the small intestine and will become a very thin, watery mixture. When you swallow a small ball of mushed-up food or liquids, a special flap called the epiglottis (say: ep-ih-glot-iss) flops down over the opening of your windpipe to make sure the food enters the esophagus and not the windpipe. These juices help to digest food and allow the body to absorb nutrients. The act of swallowing takes place in the pharynx partly as a reflex and partly under voluntary control. The appendix is a small tube attached to the ascending colon. Continued, the esophagus is a muscular tube extending from the pharynx and behind the trachea to the stomach.

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