What is the digestive system

The digestive system includes the digestive tract and its accessory organs, which process food into molecules that can be.Digestion begins in the mouth, well before food reaches the stomach.

The pharynx, a passageway for food and air, is about 5 inches (12.7 centimeters) long.The digestive tract is a series of hollow organs joined in a.Which of the following major layers of the digestive tract is described as a layer of dense irregular connective tissue filled with blood vessels and the plexus of.Celiac disease runs in families and can become active after some sort of stress, such as surgery or a viral infection.The liver (located under the ribcage in the right upper part of the abdomen), the gallbladder (hidden just below the liver), and the pancreas (beneath the stomach) are not part of the alimentary canal, but these organs are essential to digestion.The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.Glands in the stomach lining produce about 3 quarts (2.8 liters) of these digestive juices each day.

Gastritis and peptic ulcers arise when a bacterium, Helicobacter pylori, or the chronic use of drugs or certain medications weakens the protective mucous coating of the stomach and duodenum, allowing acid to get through to the sensitive lining beneath.Cystic fibrosis is a chronic, inherited illness that not only affects the lungs but also causes the production of abnormally thick mucus to block the ducts or passageways in the pancreas.Learn more about processes and functions of the digestive system in the Boundless open textbook.In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food.At its simplest, the digestive system is a tube running from mouth to anus.This patient education FAQ provides an overview of digestive problems, including constipation, diarrhea, acid reflux, hemorrhoids, IBS, and more.Most substances in the food we eat need further digestion and must travel into the intestine before being absorbed.The leftover parts of food which cannot be broken down, digested, or absorbed are excreted as bowel movements (stool).

Multiple-Choice Questions on The Digestive System with instant feedback.Viral hepatitis, such as hepatitis A, B, or C, is highly contagious.Inflammatory bowel disease (IBD) is chronic inflammation of the intestines that affects older kids, teens, and adults.Information about gastroenterologists, physician who specialize in the GI tract or digestive system.GERD often can be corrected through lifestyle changes, such as dietary adjustments.Nutrient absorption is an important function of the digestive system.

The gallbladder can develop gallstones and become inflamed — a condition called cholecystitis.The digestive system is the group of organs that break down food in order to absorb its nutrients.

What is the Digestive System - Answers.com

Find out more about the digestive system and how our bodies break down and absorb the food we eat.

SEER Training:Regions of the Digestive System

Carbohydrates The Digestive System is a Mechanical Digestion Food is chopped and ground into small.Digestion is the breakdown of food into small molecules, which are then absorbed into the body.

Your digestive system is uniquely designed to turn the food you eat into nutrients, which the body uses for energy, growth and cell repair.Most nutrient absorption occurs in the upper portion of the small intestines.But before food can do that, it must be digested into small pieces the body can absorb and use.The digestive system is an organ system that breaks food down into small.

The cecum is a pouch at the beginning of the large intestine that joins the small intestine to the large intestine.The pictures in this section are reprinted with permission by the.The whole digestive system is in the form of a long, hollow, twisted and turned tube, called the.In some cases, surgery may be necessary to remove inflamed or damaged areas of the intestine.When we see, smell, taste, or even imagine a tasty meal, our salivary glands, which are located under the tongue and near the lower jaw, begin producing saliva.

The gut, which includes your esophagus, stomach, small and large intestines, colon and other parts of your digestive system, is the first line of defense and the.An acidic environment is needed for the digestion that takes place in the stomach.

Digestive System Disorders - Disabled World

During the process of absorption, nutrients that come from the food (including carbohydrates, proteins, fats, vitamins, and minerals) pass through channels in the intestinal wall and into the bloodstream.The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and.From the throat, food travels down a muscular tube in the chest called the esophagus.The digestive system absorbs and transports all the nutrients your body needs.You should be getting pretty good at making sense of medical terminology.

What is the mouth's role in the digestive system

A step-by-step look at how your digestive system works, from top to bottom.Conditions affecting the pancreas, liver, and gallbladder often affect the ability of these organs to produce enzymes and other substances that aid in digestion.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.

In babies with esophageal atresia, the esophagus comes to a dead end instead of connecting to the stomach.A walnut-sized muscular valve at the outlet of the stomach called the pylorus keeps chyme in the stomach until it reaches the right consistency to pass into the small intestine.

Biology4Kids.com: Animal Systems: Digestive System

The digestive system is all of the organs and glands in the body that work together to bring about the digestion of food.This can irritate and inflame the lining of the stomach (gastritis) or cause peptic ulcers, which are sores or holes in the lining of the stomach or the duodenum that cause pain or bleeding.

A digestive enzyme called amylase, which is found in saliva, starts to break down some of the carbohydrates (starches and sugars) in the food even before it leaves the mouth.The appendix, a small, hollow, finger-like pouch, hangs at the end of the cecum.Although gallbladder conditions are uncommon in kids and teens, they can happen in those who have.There are about 30 feet (9 meters) of these convoluted pipeworks.People with celiac disease have difficulty digesting the nutrients from their food and may have diarrhea, abdominal pain, bloating, exhaustion, and even depression when they eat foods with gluten.The digestive tract and digestive glands regarded as an integrated system responsible for the ingestion, digestion, and absorption of food. diges.Esophagitis (inflammation of the esophagus) can be caused by infection, certain medications, or gastroesophageal reflux disease (GERD).Digestion is necessary for absorbing nutrients from food and occurs.