Advanced searches left 3/3
Search only database of 12 mil and more summaries

The Gastrointestinal Tract

Summarized by PlexPage
Last Updated: 18 January 2022

* If you want to update the article please login/register

General | Latest Info

Effects of Coffee and Its Components on the Gastrointestinal Tract and the Brain–Gut Axis.png "Effects of Coffee and Its Components on the Gastrointestinal Tract and the Brain–Gut Axis.png", by Iriondo-DeHond, A.; Uranga, J.A.; del Castillo, M.D.; Abalo, R., licensed under CC BY 4.0

Gastrointestinal Tract Is Organ System That Enables Us To Ingest Food Via Mouth, Digest It By Breaking It Down, Absorb It, And Then Expel Remaining Waste As Faeces Via Anus. Gastrointestinal Tract Is Made Up Of Series Of Hollow Organs Joined Together In Long Tube With Many Folds From Mouth To Anus. Hollow organs that make up gastrointestinal tract include mouth, oesophagus, stomach, small intestine, cecum, colon, rectum and anal canal. Organs of gastrointestinal tract contain layers of muscles, enabling their walls to move food through tract by process called peristalsis, allowing for breaking down and absorption of food to take place. Oesophagus Is Muscular Tube, Transports Food And Liquid From Pharynx To Stomach. It descends down into thorax and enters abdomen, where it then joins stomach. Stomach Is Located Between Oesophagus And Duodenum. After food enters stomach, muscular walls of stomach act to mix food and liquid with digestive juices. Contents of stomach, called chyme, are then emptied into small intestine. Small Intestine Is Approximately 6. 5m long and extends from stomach to large intestine. Anatomically, small intestine can be divided into three duodenum, jejunum and ileum. Appendix Is Small, Blind - End Tube That Is Attached To Cecum. It contains large amount of lymphoid tissue, and is not thought to have any vital functions. Cecum Is First Part Of Large Intestine And Is Located Between Ileum And Ascending Colon. It acts as store for chyme, which it receives from ileum. Colon extends from cecum to anal canal, and can be divided into parts anatomically. It receives digested food from small intestine, and absorbs water and to form faeces. Rectum Is Located Between Large Intestine And Anal Canal, And Enables Temporary Store Of Faeces. Anal canal is final segment of gastrointestinal tract, and is involved in defecation and maintaining faecal continence. In this section, learn more about anatomy of gastrointestinal tract - oesophagus, stomach, small intestine, appendix, cecum, colon, rectum and anal canal.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

What Is Digestion?

Digestion is complex process of turning food you eat into nutrients, which body uses for energy, growth and cell repair needed to survive. Digestion Process Also Involves Creating Waste To Be Eliminate. Digestive Tract Is Long Twisting Tube That Starts At Mouth And Ends At Anus. It is made up of series of muscles that coordinate movement of food and other cells that produce enzymes and hormones to aid in breakdown of food. Along way other accessory organs that are needed for digestion: gallbladder, liver, and pancreas.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Continued

Digestive System Is Responsible For Taking Whole Foods And Turning Them Into Energy And Nutrients To Allow Body To Function, Grow, And Repair Itself. Six primary processes of digestive system include: ingestion of food Secretion of fluids and digestive enzymes Mixing and movement of food and waste through body Digestion of food into smaller pieces Absorption of nutrients Excretion of waste First Function Of Digestive System Is Ingestion, Or Intake Of Food. Mouth is responsible for this function, as it is orifice through which all food enters body. Mouth And Stomach Are Also Responsible For Storage Of Food As It Is Waiting To Be Digest. This storage capacity allows body to eat only few times each day and to ingest more food than it can process at one time. In course of day, digestive system secretes around 7 liters of fluids. These fluids saliva, mucus, hydrochloric acid, enzymes, and bile. Saliva moistens dry food and contains salivary amylase, digestive enzyme that digestion of carbohydrates. Mucus serve as protective barrier and lubricant inside of GI tract. Hydrochloric acid helps to digest food chemically and protect body by killing bacteria present in our food. Enzymes are like tiny biochemical machines that disassemble large macromolecules like proteins, carbohydrates, and lipids into smaller components. Finally, bile is used to emulsify large masses of lipids into tiny for easy digestion. Digestive System Uses 3 Main Processes To Move And Mix Food: Swallowing. Swallowing is process of using smooth and skeletal muscles in mouth, tongue, and pharynx to push food out of mouth, through pharynx, and into esophagus. Peristalsis. Peristalsis is muscular wave that travels length of GI tract, moving partially digested food short distance down tract. It takes many waves of peristalsis for food to travel from esophagus, through stomach and intestines, and reach end of GI tract. Segmentation. Segmentation occurs only in small as short segments of intestine contract like hands squeezing toothpaste tube. Segmentation helps to increase absorption of nutrients by mixing food and increasing its contact with walls of intestine. Digestion is process of turning large pieces of food into its component chemicals. Mechanical Digestion is physical breakdown of large pieces of food into smaller pieces. This mode of digestion begins with of food by teeth and is continued through muscular mixing of food by stomach and intestines. Bile produced by liver is also used to mechanically break fats into smaller globules. While food is being mechanically digested, it is also being chemically digested as larger and more complex molecules are being broken down into smaller molecules that are to absorb. Chemical Digestion begins in mouth with salivary amylase in saliva splitting complex carbohydrates into simple carbohydrates.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Sources

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

logo

Plex.page is an Online Knowledge, where all the summaries are written by a machine. We aim to collect all the knowledge the World Wide Web has to offer.

Partners:
Nvidia inception logo

© All rights reserved
2022 made by Algoritmi Vision Inc.

If you believe that any of the summaries on our website lead to misinformation, don't hesitate to contact us. We will immediately review it and remove the summaries if necessary.

If your domain is listed as one of the sources on any summary, you can consider participating in the "Online Knowledge" program, if you want to proceed, please follow these instructions to apply.
However, if you still want us to remove all links leading to your domain from Plex.page and never use your website as a source, please follow these instructions.