What is digestive system, parts and what they do? Digestive system starts from mouth and ends at large intestine, involving other organs & secretions.
What is Digestive System?
The digestive tract is a group of internal organs that operate together to turn the foods you eat in to the energy and nutrients our body requires. Once you ingest food and fluids, the digestive system splits them down into their fundamental elements: fats, proteins, carbohydrates and vitamins. These essential nutrients are then transferred to blood stream, which takes these to entire body cells. Nutrients supply energy to the cells for growth and tissue repair. Everything inside the human body, from the body's hormones or the heart, needs the nutrients supply from the digestive system to function effectively.
How does the Digestive System work?
Whenever you eat, food goes from the mouth straight down the esophagus and then to stomach. After that it passes through the small and large intestinal tract, and finally goes out from the anus as waste materials. The pancreas, liver, and gallbladder are also parts of the digestive system. These organs generate chemical substances that assist in digestion process.
All of these internal organs operate in balance to guarantee that the body gets necessary nutrients. Some of these organs are inside hollow, while others tend to be solid. A sequence of muscular contractions transfers meal by the digestive system from the hollow body organs towards the solid organs. Such particular process is known as peristalsis.
The hollow internal organs of the digestive system comprise of the following:
Mouth;
Digestion process begins inside the mouth. That's where the steps of chewing takes place to convert starchy meal in to carbohydrates. Saliva is released by special oral glands. Saliva plus the enzymes found in saliva also assist the breakdown step of starchy foods.
Esophagus;
Through this organ, meal is pushed from the mouth to the stomach.
Stomach;
As the meal moves from esophagus, top muscles of stomach relax to allow food entry. After the meal is in stomach, the stomach muscles start to move. Such movement combines food with acidic juice released by stomach glands. The acid mainly breaks down protein containing foods. finally, the stomach contents are emptied inside the small intestine.
Small Intestine;
The muscles from the small intestine combine food using its unique digestive juices, together with those released from the liver and pancreas. As the food moves towards large intestine, these digestive system juices additionally break down the food into fats, proteins and carbohydrates. The nutrients are then absorbed by walls of small intestine which are transferred to blood stream. From there, the blood delivers nutrients to tissues all over the body.
Large Intestine;
Only some food items are broken down in the digestive tract. Undigested food, dead tissues, and waste is pushed to the large intestine. The large intestine absorbs leftover nutrition and water from the waste prior to converting it in to solid feces. Fecal matter is stored in last portion of the large intestine, the rectum, before it is excreted from the body through a bowel movement.
Whilst the hollow internal organs play vital functions in the digestive procedure, the solid internal organs discharge different chemical substances that enable the digestive system to function.
The solid internal organs of the digestive system are the following:
Pancreas;
The pancreas is found in the upper portion of the abdominal cavity, behind the stomach. It generates digestive secretions that assist the small intestine split food into fats, proteins and carbohydrates. It also provides chemical substances that help control blood sugar values.
Liver;
It is large body organ situated in the stomach in the upper portion of abdomen. Majorly, the liver produces bile, a digestive system component that’s saved in the gallbladder. Throughout digestion, bile is provided to the little intestine to enable foods break down which have fat. Apart from aiding in the digestive procedure, the liver additionally stores nutrients and assists eliminate harmful toxins from the body.
Gallbladder;
The gallbladder is a small sack which stores the bile produced in the liver. During digestive function, the gallbladder secrete bile into the small intestinal tract to break down meals containing fats.
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