Human digestion

Components Historical depiction of the digestive system, 17th century Persia There are several organs and other components involved in the digestion of food. The organs known as the accessory digestive glands are the livergall bladder and pancreas. Other components include the mouthsalivary glandstongueteeth and epiglottis.

Human digestion

Check new design of our homepage! Human Digestive System The human digestive system is a vital organ system in the body.

Digestive System (Anatomy): How It Works

This system is made up of different organs, which function in a synchronized manner to assimilate food and expel waste Bodytomy Staff Last Updated: Oct 05, The human body is a complex system that consists of a number of organ systems working in sync together for the sustenance of life.

Even if one of the organ systems is Human digestion or is malfunctioning, then it can affect the entire body system. The human digestive system, also called the gastrointestinal tract or GI tract, is one such system whose main function is digestion.

Food and drink, when consumed, need to be broken down into small parts so that the body is able to use them for nourishment and energy. Digestion begins in the mouth and ends in the small intestine. The food in the mouth is mixed with Human digestion juices, and is broken down into smaller molecules.

It is then pushed into the stomach, where further digestion takes place. The digested food is assimilated in the blood and transported to the entire body.

Digestive System of the Human Body If you observe the diagram of the digestive system, you will notice that it is made up of different organs that function together. With the help of the explanation provided, you can understand the working mechanism of this organ system.

The Mouth or Buccal Cavity The mouth or the oral cavity is the starting point of the digestive system. The buccal cavity, has a set of 32 teeth, a tongue, and salivary glands.

All these parts help in the chewing and breakdown of food. There are three types of salivary glands, categorized according to their placement in the mouth - parotid, submandibular and sublingual.

The salivary glands release enzymes that partially digest the food in the mouth before it is passed to the stomach through the esophagus. There is also another part in the oral cavity in the throat, known as the pharynx. The pharynx is the common pipe for the esophagus and the trachea also known as wind pipe.

The main function of the pharynx is the passage of food and air to the respective organs.

Human digestion

The Esophagus The esophagus, which is also known as the gullet or food pipe, is a long narrow pipe that connects the mouth to the stomach. The primary function of this pipe is transportation of food and liquid from the mouth to the stomach. The chewed food is passed through the food pipe by the process of peristalsis.

Peristalsis is a process which consists of rhythmic contractions of the muscles in the inner wall of the esophagus to push the food through the pipe into the stomach. The Stomach and Pancreas The next important organ of the human digestive system is the stomach, where the actual digestion takes place.

The stomach is located on the left side of the body below the diaphragm and has a cardiac sphincter muscle at the opening.

This muscle further pushes the bolus chewed food into the stomach from the gullet. Once all the bolus is transported, the muscle closes and the stomach begins its process of churning the food.

Human digestion

Gastric juices and enzymes are released in the stomach which aid in the further digestion of the bolus. Hydrochloric acid is also released during the process of digestion which helps break the protein molecules into peptides. The stomach wall has an inner lining that secretes peritoneal fluid and mucus to protect the stomach cavity from erosion due to the presence of gastric juices and acid.

The pancreas is a small leaf-like gland located below the stomach. This exocrine gland secretes digestive enzymes in the pancreatic fluidthrough the duct into the small intestine to assist in the digestion of chyme partly digested food.

The primary purpose of this organ is the metabolism of carbohydrates, protein and lipids or fats.Digestion is the process of turning large pieces of food into its component chemicals.

Mechanical digestion is the physical breakdown of large pieces of food into smaller pieces. This mode of digestion begins with the chewing of food by the teeth and is continued through the muscular mixing of food by the stomach and intestines.

The human digestive system is a series of organs that converts food into essential nutrients that are absorbed into the body and eliminates unused waste material. It is essential to good health. Human digestive system.

The food we eat has to be broken down into other substances that our bodies can use. This is called digestion. The Human Digestive System – Interactive anatomy images teach you all about the stomach, liver, gallbladder, appendix and the other digestive system organs.

Explore. Digestive System Diagram Digestion is the process of turning large pieces of food into its component chemicals. Mechanical digestion is the physical breakdown of large .

The human digestive system is a series of organs that converts food into essential nutrients that are absorbed into the body and eliminates unused waste material. The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder.

The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.

Your Digestive System & How it Works | NIDDK