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Basic anatomy: the digestive system

How well do you know your own body? To help you understand your body and the problems you may encounter, we are beginning a series of basic anatomy lessons, beginning with the digestive system.

Basic anatomy: the digestive system

Image © patientpictures.com

 

  • The digestive system – which is also known as the gastrointestinal tract – breaks down, digests and absorbs food, and removes solid waste from the body.
  • The digestive system is a continuous muscular tube, anything from 5–9 metres (15–20 feet) long, which extends from the mouth to the anus. It consists of the gullet (oesophagus), stomach, small intestine, large intestine (colon), back passage (rectum) and anus.
  • The oesophagus carries swallowed food to the stomach. In the stomach it is mixed with acidic juices to aid digestion.
  • The food then gradually passes into the small intestine where digestion and absorption is completed with the aid of juices from the liver and pancreas. Any waste is transported to the large intestine and excreted via the rectum and anus.
  • The liver, gall bladder, bile ducts and pancreas are important organs that are often considered as part of the digestive tract. They play a major role in the digestion of food and in the breakdown of potentially harmful waste substances.
  • Common disorders that affect the digestive tract include infection and inflammation, motility (movement) disturbances and cancers.

For 30 more pictures of the digestive system, visit patientpictures.com. It is free to sign up and you will have access to more than 250 high quality images that you can print or download. Take one with you to your next doctor’s appointment to help you explain your problems.

Written by: embarrassingproblems.com
Edited by: embarrassingproblems.com
Last updated: Thursday, October 15th 2015

 


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