List of Organs that help in Digestion of Human Body

In the process of Digestion, food is broken down into smaller parts to provide energy. The digestive system is made up of the gastrointestinal tract, which is a series of organs joined from mouth to anus. This article deals with the list of organs that helps in the digestion.
Human Digestive Organs
Human Digestive Organs

Digestion is the breakdown of food into smaller components that can be easily absorbed by the bloodstream. In our human body, there is a proper digestive system i.e. some group of organs work together and convert food into energy. The organs that participate in the digestion process include the gastrointestinal tract which is a very long tube.

So we can say that the process of digestion takes place in the gastrointestinal tract, a long, connected, tubular structure that starts from the mouth and ends with the anus. This article deals with the organs that participate in the process of digestion along with some accessory glands associated with it.
Organs that help in Digestion Process

Various organs are associated with the Digestion process or Human Digestive System: Mouth, Oesophagus or Food Pipe, Stomach, Small Intestine, and Large Intestine.
1. Mouth
Food is ingested to mouth. The Buccal cavity or mouth consists of teeth, tongue and salivary glands. With the help of teeth, physical digestion of food takes place which helps the food to cut into small pieces, chews and grind it. Further salivary glands present in the mouth helps in the chemical digestion of food with the help of enzymes. It contains enzymes known as salivary amylase which digest the starch present in food into sugar. We can say that the digestion of carbohydrate or starch begins in the mouth itself. But the digestion of food remains incomplete in the mouth.
2. Oesophagus or Food Pipe
The slightly digested food goes to the stomach through the Food Pipe or Oesophagus. With the help of the peristaltic movement, food is pushed inside the stomach. The contraction and expansion of the movement of the walls of the food pipe after entering the slightly digested food is known as peristaltic movement.
3. Stomach
Do you know that food is churned in the stomach for three hours? In the stomach, food further breaks into smaller pieces and forms a semi-solid paste. Glands that are present in the walls of the stomach secrete gastric juice and contain three substances hydrochloric acid, enzyme pepsin, and mucus. The protein digestion begins in the stomach only with the help of the pepsin enzyme.

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4. Small Intestine
The small intestine is a long, thin tube about 1 inch in diameter and about 10 feet long. It is located just inferior to the stomach and takes up most of the space in the abdominal cavity.
With the help of ‘sphincter muscle’ food from the stomach releases in small amounts into the small intestine. Do you know that the largest part of the alimentary canal is the small intestine? It is the organ of the human body where complete digestion of food like carbohydrates, proteins, and fats takes place. The small intestine receives the secretions of two glands that is liver and pancreas and helps in the digestion of food.  Even intestinal juice also helps in the carbohydrate digestion. After digestion, the molecules of food become small and pass through the small intestine and goes into our blood. Here, the digested food is also absorbed.
5. Large Intestine
The large intestine is a long, thick tube about 2.5 inches in diameter and about 5 feet long. It is located just inferior to the stomach and wraps around the superior and lateral border of the small intestine.
A part of the food that cannot be digested by our body or cannot be absorbed by the small intestine passes into the large intestine. The wall of the intestine absorbs most of the water from the food and makes it solid. The rectum is the last part of the large intestine where this solid food for some time is stored and egested from our body through the anus as faeces or stool.
Apart from this, three associated digestive glands that are instrumental in the process of digestion are Pancreas, Liver, and Gallbladder.  
Pancreas: It is known for blood sugar regulatory function with the production of insulin. Digestive enzymes are secreted by the pancreas, released into the small intestine and help in the digestion of fats, proteins, and carbohydrates.
Liver: It produces bile juice which secretes enzymes and helps in the digestion of fat.
Gallbladder: When fatty food enters the small intestine, the gallbladder contracts and releases bile which is stored in it.

From the article, we have learned about the organs that help in the process of Human Digestion.

Organ Systems of Human Body

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