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Topic: Digestive system


  
  Digestive System
Almost all animals have a tube-type digestive system in which food enters the mouth, passes through a long tube, and exits as feces (poop) through the anus.
The digestive system is made up of the alimentary canal and the other abdominal organs that play a part in digestion, such as the liver and pancreas.
Celiac disease is a digestive disorder caused by the abnormal response of the immune system to a protein called gluten, which is found in certain foods.
www.kidshealth.org /teen/your_body/body_basics/digestive_system.html   (2228 words)

  
 Your Digestive System and How It Works
The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus (see figure).
Digestion is the process by which food and drink are broken down into their smallest parts so that the body can use them to build and nourish cells and to provide energy.
As the food is digested in the small intestine and dissolved into the juices from the pancreas, liver, and intestine, the contents of the intestine are mixed and pushed forward to allow further digestion.
digestive.niddk.nih.gov /ddiseases/pubs/yrdd   (2084 words)

  
 Digestive system - Pharmacy and Drugs
The gastrointestinal tract or digestive tract is otherwise referred to as the GI tract or the alimentary canal, (nourishment canal) or the gut.
The digestive system is a collection of different organs that works together to mechanically and chemically breaks down food particles into smaller molecules to extract the energy and nutrients and eventually eliminates the remaining waste.
Digestion begins in the mouth as food, is ingested, chewed, swallowed and eventually moves into the esophagus, a muscular tube that transports food from the oral cavity to the stomach through peristalsis.
www.pharmacy-and-drugs.com /Digestive_system   (1140 words)

  
  The Digestive System - Design, Workings, Ailments, Taking care
It is the job of the digestive system to take the complex organic molecules of the foods we ingest—proteins, carbohydrates, and fats—and break them down into their simple building blocks.
Once digestion has occurred, the simple molecules (nutrients) are absorbed from the digestion system by the cardiovascular and lymphatic systems and transported to cells throughout the body.
Digestion and the absorption of nutrients occurs mainly in the jejunum.
www.faqs.org /health/Body-by-Design-V1/The-Digestive-System.html   (9261 words)

  
 the digestive system
Digestion proper, which is the mechanical and chemical breakdown of food into particles/molecules small enough to pass into the blood.
The human digestive system, as shown in Figure 2, is a coiled, muscular tube (6-9 meters long when fully extended) stretching from the mouth to the anus.
Carbohydrate digestion, begun by salivary amylase in the mouth, continues in the bolus as it passes to the stomach.
www.emc.maricopa.edu /faculty/farabee/BIOBK/BioBookDIGEST.html   (4162 words)

  
 Digestive system definition - Medical Dictionary definitions of popular medical terms easily defined on MedTerms
Digestive system: The organs that are responsible for getting food into and out of the body and for making use of it.
The digestive system has a series of hollow organs joined in a long, twisting tube from the mouth to the anus.
Two solid organs, the liver and the pancreas (both of which are embryologically derived from the digestive tract), produce digestive juices that reach the intestine through small tubes known as ducts.
www.medterms.com /script/main/art.asp?articlekey=2994   (272 words)

  
 The Real Deal on the Digestive System
And the digestive system will be busy at work on your chewed-up lunch for the next few hours - or sometimes days - depending upon what you've eaten.
It's part of the digestive tract, but it doesn't seem to do anything, though it can cause big problems, because it sometimes gets infected and needs to be removed.
The digestive system is a pretty important part of your body.
www.kidshealth.org /kid/body/digest_noSW.html   (1297 words)

  
 Digestive System Theme Page
High school students are challenged to learn the structures and functions of a body system thoroughly so that they will be able to pass on the concepts and ideas to younger students in the form of children's books.
Select "Digestive" for an explanation of the various body organs involved in breaking food down into small enough parts so that the nutrients can be absorbed through the intestinal walls into the circulatory system.
Brief descriptions of the functions of the digestive system accompanied by pictures and diagrams and intended for high school students.
www.cln.org /themes/digestive.html   (991 words)

  
 Digestive system - Digestive System
The digestive system includes the digestive tract and its accessory The first activity of the digestive system is to take in food through the mouth.
The digestive system is a series of hollow organs joined in a long, The digestive system prepares food for use by hundreds of millions of body cells.
The gastrointestinal tract or digestive tract, also referred to as the GI tract or the alimentary canal, (nourishment canal) or the gut, is the system of
guinfo.info /gzgg/digestive-system.html   (486 words)

  
  Digestive System - MSN Encarta
Digestive System, series of connected organs whose purpose is to break down, or digest, the food we eat.
In the chemical phase, digestive chemicals called enzymes break apart individual molecules of food to yield molecules that can be absorbed and distributed throughout the body.
The digestive system of most animals consists mainly of a long, continuous tube called the alimentary canal, or digestive tract.
encarta.msn.com /encyclopedia_761575197/Digestive_System.html   (1231 words)

  
 digestive system. The Columbia Encyclopedia, Sixth Edition. 2001-05
In the digestive system, ingested food is converted into a form that can be absorbed into the circulatory system for distribution to and utilization by the various tissues of the body.
Digestion begins in the mouth, where chewing reduces the food to fine texture, and saliva moistens it and begins the conversion of starch into simple sugars by means of an enzyme, salivary amylase.
Digestive enzymes from the pancreas and bile from the liver act on the chyme in the duodenum.
www.bartleby.com /65/di/digestiv.html   (653 words)

  
 [No title]
Digestion is the process by which food and drink are broken down into smaller parts so that the body can use them to build and nourish cells, and to provide energy.
Digestion begins in the mouth, where food and drink is taken in, and is completed in the small intestine.
The food is digested in the small intestine and dissolved by the juices from the pancreas, liver, and intestine, and the contents of the intestine are mixed and pushed forward to allow further digestion.
www.umm.edu /digest/howworks.htm   (522 words)

  
 Digestive System
The smooth muscle in the walls of the tube-shaped digestive organs rhythmically and efficiently moves the food through the system, where it is broken down into tiny absorbable atoms and molecules.
The digestive system is made up of the alimentary canal (also called the digestive tract) and the other abdominal organs that play a part in digestion, such as the liver and pancreas.
Celiac disease is a disorder in which the digestive system is damaged by the response of the immune system to a protein called gluten, which is found in wheat, rye, and barley and a wide range of foods, from breakfast cereal to pizza crust.
kidshealth.org /parent/general/body_basics/digestive.html   (2209 words)

  
 the digestive system
: digestion occurs in the lumen (opening) of the digestive system, with the nutrient molecules being transferred to the blood or body fluid; occurs in chordates, annelids, and crustaceans.
Digestion proper, which is the mechanical and chemical breakdown of food into particles/molecules small enough to pass into the blood stream.
Carbohydrate digestion, begun by salivary amylase in the mouth, continues in the bolus as it passes to the stomach.
www.estrellamountain.edu /faculty/farabee/biobk/BioBookDIGEST.html   (0 words)

  
 The Digestive System   (Site not responding. Last check: )
The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus (see Figure 1).
Digestion is the process by which food and drink are broken down into their smallest parts so that the body can use them to build and nourish cells and to provide energy.
The first step in digestion of a fat such as butter is to dissolve it into the watery content of the intestinal cavity.
www.iffgd.org /Publications/DigestiveSystem.html   (0 words)

  
 Digestive System
The gastrointestinal track or as people call it, the digestive system, has the main purpose of break down food, both solid and fluid into sustenance for the various tissues and systems in the body.
The digestive system distance ranges from the mouth to the bottom of the trunk, which when we look at it, seems like no more than two or three feet, but is really about 30 feet and like a railway station consisting of signals, checkpoints, and control devices in a turning, zigzagging, coiling track system.
Nevertheless, digestive fluids from all three meet like intersections of a railway track at the common bile duct, and their movement from there into the duodenum is controlled by a sphincter muscle.
library.thinkquest.org /2935/Natures_Best/Nat_Best_Low_Level/Digestive_page.L.html   (1454 words)

  
 Digestive system animation illustrating digestion - Constipation Advice
The human digestive system, otherwise known as the gut or gastrointestinal tract, is essentially a continuous muscular tube about 7-8 metres long in adults running from the mouth to the anus (back passage).
Otherwise known as the gullet or food pipe, is the first section of the digestive tract which conveys ingested food and drink from the mouth to the stomach.
This is, in fact, the longest section of the digestive tract and consists of the duodenum, the jejunum and the ileum.
www.constipationadvice.co.uk /constipation/digestive_system.html   (577 words)

  
 Digestive system - Wikipedia, the free encyclopedia
The digestive system is the system of organs which is associated with extracting energy from food.
This system including the liver,guts, mouth, throat, intestines and anus.Digestive system The vertebrate digestive system consists of the digestive tract and ancillary organs that serve for the acquisition of food and assimilation of nutrients required for energy, growth, maintenance, and reproduction.
In human anatomy, it consists of the gastrointestinal tract and digestive glands.
en.wikipedia.org /wiki/Digestive_system   (3426 words)

  
 Digestive System/ Functions of the Digestive System
The digestive system includes the digestive tract and its accessory organs, which process food into molecules that can be absorbed and utilized by the cells of the body.
Digestion and absorption occur in the digestive tract.
This is mechanical digestion, which begins in the mouth with chewing or mastication and continues with churning and mixing actions in the stomach.
training.seer.cancer.gov /module_anatomy/unit10_1_dige_functions.html   (447 words)

  
 Digestion
The organs that make up the digestive system are: the mouth, pharynx, esophagus, stomach, small intestine, and large intestine.
The primary digestive organs do most of the work of digesting solid foods and the accessory organs help process the nutrients, by producing bile, and secreting digestive enzymes.
Fat is also digested in the small intestine when bile (from the liver) emulsifies fats and lipase(from the pancreas) break down triglycerides to fatty acids and monoglycerides.
bioweb.wku.edu /courses/BIOL115/Wyatt/Anatomy/Digestion/Digestive1.htm   (0 words)

  
 Digestive System Web Resources for Students
The digestive system is responsible for the digestion, absorption, and assimilation of fluids, macro- and micro-nutrients (vitamins and minerals) and the elimination of waste from the gastrointestinal tract.
The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.
The Digestive system plays a very important role in the functioning of the human body in that it regulates the energy break down for the cells of the body.
www.stemnet.nf.ca /CITE/digestive.htm   (391 words)

  
 DIGESTIVE SYSTEM
The digestive system is a complex organization requiring the coordinated functioning of many independent organs.
Your digestive system has been activated, and the various organs and glands are busy pumping enzymes into the system.
An ulcer represents digestion of the organ involved (stomach ulcers are always a result of weakened resistance of the stomach lining to digestion).
www.webnat.com /hi/DigestiveSystem.asp   (2467 words)

  
 Digestive System Information on Healthline
The digestive system is a group of organs and tissues responsible for the conversion of food into absorbable chemicals which are then used to provide energy for growth and repair.
The digestive system is also known by a number of other names, including the gut, the digestive tube, the alimentary canal, the gastrointestinal (GI) tract, the intestinal tract, and the intestinal tube.
The digestive system consists of the mouth, esophagus, stomach, and small and large intestines, along with several glands, such as the salivary glands, liver, gall bladder, and pancreas.
www.healthline.com /galecontent/digestive-system   (799 words)

  
 What is the Digestive System?
The digestive system is divided into regions that specialize in the process of digestion.
Moving constantly and slowly, the digestive tract and it's accessory organs of digestion (the liver, gallbladder and pancreas) are faced with the task of converting all the foods we eat (from apples to zuchinni) into energy that supports and supplies the brain, the heart and the entire body.
The food we eat is the fuel or gas that the digestive system (or fuel tank), converts into combustible power and energy needed to make our muscles move, carry out bodily functions, and repair and rebuild tissue.
www.becomehealthynow.com /article/bodydigestive/726   (765 words)

  
 The Digestive System
The detailed structure of the parts of the digestive tube is related to their specific functions, but the overall architectural plan, particularly from the esophagus to the recto-anal junction, is for the most part, the same.
The muscularis externa consists of smooth muscle in most of the digestive tract, but is striated muscle in the upper part of the esophagus.
In contrast to most of the remainder of the digestive tract, the muscularis externa of the upper part of the esophagus is composed of striated muscle.
ect.downstate.edu /courseware/histomanual/digestive.html   (3000 words)

  
 Digestive system overview and digestive disorders information from iVillage Total Health - Page 1
The digestive system is the series of organs in the body that is responsible for digesting food and extracting nutrients necessary to sustain life.
Digestion takes place in the alimentary canal, a tube that runs from the mouth to the anus.
The functions of the digestive system are controlled by hormones, chemical messengers that are produced and released by cells in the lining of the stomach and small intestine.
digestive.health.ivillage.com /digestivehealthbasics/digestivesystem.cfm   (461 words)

  
 gihealth.com - built for patient satisfaction
Well, it is time that the digestive system, or gut, came out of the closet.
Of course, digestion begins when your food is first broken down into smaller pieces by your jaws and teeth and mixed with saliva - up to two quarts a day.
When your digestive system is working normally, you should not even be aware of all of these complicated functions.
www.gihealth.com /html/education/digestive.html   (0 words)

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