The Digestive System
The human gastrointestinal tract is the stomach and intestine, sometimes including all the structures from the mouth to the anus. (The "digestive system" is a broader term that includes other structures, including the accessory organs of digestion).
In an adult male human, the gastrointestinal (GI) tract is 5 metres (20 ft) long in a live subject, or up to 9 metres (30 ft) without the effect of muscle tone, and consists of the upper and lower GI tracts. The tract may also be divided into foregut, midgut, and hindgut, reflecting the embryological origin of each segment of the tract.
The GI tract always releases hormones to help regulate the digestive process. These hormones, including gastrin, secretin, cholecystokinin, and ghrelin, are mediated through either intracrine or autocrine mechanisms, indicating that the cells releasing these hormones are conserved structures throughout evolution.

This is an excerpt from the article The Digestive System from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article The Digestive System at en.wikipedia.org was accessed 244 times in the last 30 days. (as of: 11/17/2013)
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The Digestive System and How It Works - National Digestive ...
Sep 18, 2013 ... The Digestive System is made up of the gastrointestinal (GI) tract—also called the digestive tract—and the liver, pancreas, and gallbladder.
digestive.niddk.nih.gov/ddiseases/pubs/yrdd/
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Digestive System | Everything You Need to Know, Including Pictures
The Human Digestive System – Interactive anatomy images teach you all about the stomach, liver, gallbladder, appendix and the other digestive system organs.
www.innerbody.com/image/digeov.html
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Your Digestive System - KidsHealth
The Digestive System breaks down the food you eat. Learn how in this article for kids.
kidshealth.org/kid/htbw/digestive_system.html
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The Digestive System Diagram, Organs,…
Just how do we digest our food? WebMD explains The Digestive System, from the top to bottom.
www.webmd.com/digestive-disorders/digestive-system
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Human Digestive System - EnchantedLearning.com
The human digestive system is a complex series of organs and glands that processes food. In order to use the food we eat, our body has to break the food down ...
www.enchantedlearning.com/subjects/anatomy/digestive/
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Digestive System - National Geographic
Get information, facts, photos, news, videos, and more about The Digestive System and how it works from National Geographic.
science.nationalgeographic.com/science/health-and-human-body/human-body/digestive-system-article/
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Digestion - Wikipedia, the free encyclopedia
Digestive systems take many forms. There is a fundamental distinction between internal and external digestion. External ...
en.wikipedia.org/wiki/Digestion
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The Digestive System - Science Bob - ScienceBob.com
Here is some interesting information about The Digestive System: How food can go from a sandwich and salad and be turned into the energy needed to hit a ...
www.sciencebob.com/research/digestion.php
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the digestive system
May 18, 2010 ... The Digestive System uses mechanical and chemical methods to break food down into nutrient molecules that can be absorbed into the blood.
www2.estrellamountain.edu/faculty/farabee/BIOBK/biobookdigest.html
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Slide show: See how your digestive system works - MayoClinic.com
A step-by-step look at how your digestive system works, from top to bottom.
www.mayoclinic.com/health/digestive-system/DG00021
Search results for "The Digestive System"
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The Digestive System in science
The Digestive System - Ohio State University Medical Center
The Digestive System - An Overview. What is digestion? Food and drink must be changed into smaller molecules of nutrients to be absorbed into the blood and ...
Introductory Anatomy: Digestive System - University of Leeds
A complete look at the this system starting with the purpose, mouth, swallowing, oesophagus, stomach, duodenum, small and large intestines, salivary glands, ...
Digestive System - The Children's University of Manchester
These molecules are used to give you. energy, make you grow and make your. body function properly. Let's take a look in more detail... The Digestive System.
Explore your digestive system - OpenLearn - Open University
An interactive exploration of how The Digestive System works.
Anatomy of the Digestive System - University of Minnesota Medical ...
The Digestive System breaks food down into basic nutrients that can be used by the body. The digestive tract is a long, muscular tube that extends from the mouth  ...
[PDF]The Digestive System - University of Maine
The digestive tract is the mouth, the esophagus, the stomach, the small intestine, the ... 1The Digestive System educational unit was researched and compiled by ...
Digestive system diseases - Des Moines University
The rising blood pressure in the veins between the gastrointestinal tract and liver causes engorgement of veins around the umbilicus (navel). The characteristic ...
Medications and the Digestive System - The University of Chicago ...
Detailed information on The Digestive System and medications, including a list of problems related to The Digestive System that can occur when taking medication.
Digestive System Quiz - University of Rochester Medical Center
What Do You Know About The Digestive System? What happens to that cheeseburger and fries (or, we hope, that whole wheat bread and green salad) you had ...
The Digestive System - Vivo.Colostate.edu
Jul 5, 2006 ... Hypertext system which provides information, displays images, and explains the histology of The Digestive System.
Books on the term The Digestive System
The Digestive System: Systems of the Body Series
The Digestive System: Systems of the Body Series
Margaret E. Smith, Dion G. Morton, 2011
This is an integrated textbook on The Digestive System, covering the anatomy, physiology and biochemistry of the system, all presented in a clinically relevant context appropriate for the first two years of the medical student course.
The Digestive System: Systems of the Body Series, 2e
The Digestive System: Systems of the Body Series, 2e
Margaret E. Smith PhD DSc and Dion G. Morton MD DSc, 2010
This is an integrated textbook on The Digestive System, covering the anatomy, physiology and biochemistry of the system, all presented in a clinically relevant context appropriate for the first two years of the medical student course.One of the seven volumes in the Systems of the Body series.Concise text covers the core anatomy, physiology and bioc...
The Digestive System
The Digestive System
Helen Frost, Gail Saunders-Smith, 2001
Introduces the various parts of The Digestive System and the functions they perform.
The Digestive System
The Digestive System
Ben Morrison, 2001
Simply describes the functioning of The Digestive System and explains the process of digestion.
Survive! Inside the Human Body, Vol. 1: The Digestive System
Survive! Inside the Human Body, Vol. 1: The Digestive System
Gomdori Co. and Hyun-dong Han, 2013
From the Inside Cover Have you ever wondered: How antacids work? How our bodies break down food and absorb nutrients? Why we have sphincters? How the stomach protects itself from its own acid? How doctors cure patients who have parasites living in their digestive systems? Why we have trillions of friendly microbes living inside of us?
The Digestive System
The Digestive System
Kara Rogers, 2010
Examines the parts and orgainzation of The Digestive System, including information on diseases of The Digestive System.
The Digestive System Anatomical Chart
The Digestive System Anatomical Chart
Anatomical Chart Company, 2000
This popular chart of The Digestive System clearly illustrates the organs that make up The Digestive System. All structures are labeled. The beautiful central image shows the esophagus, liver, stomach (sectioned to show inside walls) , gallbladder, pancreas, intestines, rectum, arteries and veins.Includes:illustration of the location of the digesti...
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Blog posts on the term
The Digestive System
Have You Ever Travelled Through the Digestive System? | Bournville Primary School
bournville.org/have-you-ever-travelled-through-the-digestive-system/
Food Digestion: Do You Have A Healthy Digestive System? - BuiltLean
Food digestion can have a big impact on your overall health since it is where you get all the nutrients that keep your body strong. Find out what our MD says about ensuring a healthy digestive system.
www.builtlean.com/2013/12/18/food-digestion/
» Digestive System Kids' Blog
The Food Factory The Digestive System breaks down food into smaller pieces so it can be absorbed into the blood stream and carried to the body's cells which use it to make energy.
www.imcpl.org/kids/blog/?p=12436
Top 5 Ways to Improve Your Digestion - Dr. Aaron Martin's Blog - Ankeny, IA Patch
A well-functioning digestive system is crucial to maintaining your body’s overall health. Without it, you are likely to have bowel problems and suffer
ankeny.patch.com/groups/dr-aaron-martins-blog/p/top-5-ways-to-improve-your-digestion
Appropriate food choices can make your digestive tract nutritious | Matoto Play
matotoplay.com/uncategorized/appropriate-food-choices-can-make-your-digestive-tract-nutritious/
HowStuffWorks "How the Digestive System Works"
The Digestive System absorbs and transports all the nutrients your body needs. Learn more about The Digestive System.
science.howstuffworks.com/life/human-biology/digestive-system.htm
Science Heroes 1: The Digestive System for Kids by Yogome, Inc - Review @ The iMums
Most kids would think that digestion takes place only in the stomach, they may not know that digestion begins even before the food enters the mouth. Do your kids ever ask you questions like why do we have to eat or what happens to the food that we eat, but you find that you can't quite remember all the facts? Now there's an easy and fun way for your kids to learn the fascinating facts about The Digestive System!
www.theimum.com/2013/12/science-heroes-1-the-digestive-system-for-kids-by-yogome-inc-review/
Ozark Ramblings: A Trip Through the Digestive System (Apologia A & P)
It was my turn to organize the project/lab for our co-op of Apologia’s Human Anatomy and Physiology. We just finished Chapter 4 on The Digestive System where the suggested project was to make a digestive themed amusement park.
oramblings.blogspot.com/2013/12/a-trip-through-digestive-system.html
Think * Share * Teach: The Digestive System
digestive system learning stations activities
thinkshareteach.blogspot.com/2013/11/the-digestive-system.html
Science Heroes 1: The Digestive System for Kids – Best Apps For Kids
bestappsforkids.com/2013/11/science-heroes-1-the-digestive-system-for-kids/
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