The organ that is behind the belly button is the small intestine. It is part of the body's digestive system.Know More
Partially digested food from the stomach enters into the small intestine via the pyloric valve. The most vital part of food digestion takes place in the small intestine. Measuring approximately 21 feet in length, it is coiled loosely in the abdomen.
The small intestine is comprised of ileum, duodenum and jejunum. Food is broken down in the duodenum, the intestine's upper portion. To cater to the body's energy and health requirements, important nutrients like fats, minerals, vitamins, carbohydrates and proteins are absorbed in the jejunum and ileum. Villi, tiny finger-like projections line the small intestine, giving additional surface area and thus, better food absorption.Learn more about Organs
Effector organs are smooth muscle, cardiac muscle and glands that respond to nerve impulses from the central nervous system without conscious thought. They are part of the automatic, or involuntary, nervous system, along with receptors, afferent nerves and efferent nerves.Full Answer >
A mixture of food, liquid and digestive juice called chyme enters the small intestine from the stomach and combines with secretions such as enzymes, bicarbonate and bile salts to further break down food, according to the International Foundation for Functional Gastrointestinal Disorders. These enzymes come from the liver and pancreas. Food digests in three distinct parts of the small intestine.Full Answer >
The stomach stores swallowed and digested food, mixes it with digestive juices, and empties its contents into the small intestine. The stomach is part of the body's gastrointestinal tract, according to the National Institute of Diabetes and Digestive and Kidney Diseases.Full Answer >
It takes food about five to seven hours to pass through the small intestine, although the total transit time can vary slightly from one person to the next. The small intestine is where most digestive processes take place. The quantity and types of food a person eats may drastically affect the time food takes to pass through the small intestine.Full Answer >