Your digestive system is uniquely constructed to perform its specialized function of turning food into the energy you need to survive and packaging the residue for waste disposal. To help you understand how the many parts of the digestive system work together, here is an overview of the structure and function of this complex system. The mouth is the beginning of the digestive tract; and, in fact, digestion starts here when taking the first bite of food.
Which organ is the most important organ in the body? Most people would say the heart or the brain, completely overlooking the gastrointestinal tract GI tract. Though definitely not the most attractive organs in the body, they are certainly among the most important.
Inflammatory bowel disease IBD is a digestive disease which can affect any part of your digestive tract. Here we take a look at how a healthy digestive system should work. Your digestive system turns the food you eat into nutrients which the body then uses for energy, growth and cell repair.
Also known as the gastrointestinal GI tract, the digestive system begins at the mouth, includes the esophagus, stomach, small intestine, large intestine also known as the colon and rectum, and ends at the anus. Digestion begins with the mouth. Even the smell of food can generate saliva, which is secreted by the salivary glands in the mouth, contains an enzyme, salivary amylase, which breaks down starch.
The rectum and anus are the final stages of the digestive tract. The rectum is the last straight section of the large intestine before reaching the anus. The anus is the opening at the lower end of the digestive tract that controls the expulsion of feces.
The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liverpancreasand gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagusstomach, small intestine, large intestine, and anus.
The anus from Latin anus meaning "ring", "circle" is an opening at the opposite end of an animal's digestive tract from the mouth. Its function is to control the expulsion of fecesunwanted semi-solid matter produced during digestion, which, depending on the type of animal, may include: matter which the animal cannot digest, such as bones ;  food material after all the nutrients have been extracted, for example cellulose or lignin ; ingested matter which would be toxic if it remained in the digestive tract; and dead or excess gut bacteria and other endosymbionts. Amphibians, reptiles, and birds use the same orifice known as the cloaca for excreting liquid and solid wastes, for copulation and egg -laying.
Jump to content. Your digestive system is made up of a series of organs that allows your body to get the nutrients and energy it needs from the food we eat. As food travels through the digestive system it is broken down, sorted, and reprocessed before being circulated around the body to nourish and replace cells and supply energy to our muscles.
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The rectum is a chamber that begins at the end of the large intestine, immediately following the sigmoid colon, and ends at the anus see also Overview of the Anus and Rectum. Ordinarily, the rectum is empty because stool is stored higher in the descending colon. Eventually, the descending colon becomes full, and stool passes into the rectum, causing an urge to move the bowels defecate.