Biology

The Human Digestive System What Is Digestion? The human personate obtains the touch on button and nutrients it unavoidably from fodder. However, our cells jackpot non absorb these nutritional benefits until the nutriment has been digested - meaning, tasteful and converted into a useable imprint. Thus digestion is the intricate process of prisonbreak down nourishment molecules into energy and separate useful components, which can then be cloaked into the bloodstream and distributed throughout the body to importanttain good health. Food remnants which are not absorbed during the digestion process are expelled as waste in the wee-wee of feces. Where Do We Digest Our Food? The digestion of food in mankind takes place in the gastrointestinal nerve tract - a serial of hollow organs (mouth, esophagus, and resist, large and small intestines) connected to form a long tube of about 24 feet in length which extends from the mouth to the anus. It is also referred to as the GI Tract, the nourishing canal, the digestive tract, or the gut. Above the large intestine, the digestive constitution is sometimes called the upper gastrointestinal tract, while everything below is the lour gastrointestinal tract. The tract has muscular walls that propel food along the tube (a process called peristalsis) breaking it down and concoction it with digestive juices for optimum absorption.

The Functions Of The Digestive Tract The gastrointestinal tract has four main functions. It ingests the food we eat; it breaks it down into simplex chemical components for energy and nutritional purp oses; it extracts nutrients from it (eg. mac! ronutrients such as carbs, fats, proteins; as well as micronutrients like vitamins and minerals); and finally it expels the remaining food waste. Figure 1. plot Of Digestive System  How Food Passes finished The Digestive Tract During eating, food passes from the mouth into the esophagus, then into the stomach from where it enters the small intestine (comprising the duodenum, jejunum and ileum). to the highest degree if not all...If you want to create a full essay, gear up it on our website: BestEssayCheap.com

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