While the intestines are found to be mainly affected by Crohn’s disease, even other parts of the digestive tract may develop this condition. Pages 1-18. Common diseases of the digestive system include Crohn’s disease, which is characterized by inflammation of the walls of the digestive tract. The human digestive system is the means by which tissues and organs receive nutrients to function. Author information: (1)Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong. On its trip, it’s mixed with acids and digestive juices, and squeezed and squelched until all the nutrients that the body needs are absorbed. The digestive system allows us to utilize food from such diverse sources as meat from an animal and the roots of a plant, and utilize them as an energy source. Book chapter Full text access. It takes around 24 hours for your dinner to wind its way through the nine-metre-long digestive tract. Wong SH(1)(2), Lui RN(1)(2), Sung JJ(1)(2). Select 2 - THE MOUTH, SALIVARY GLANDS AND OESOPHAGUS. 2 - THE MOUTH, SALIVARY GLANDS AND OESOPHAGUS. Pages 39-50 . 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. Select 4 - THE STOMACH: … It also eliminates all the waste products from the body. Find out about the digestive system by watching the animation and trying the activity in this KS2 Science guide. Select 3 - THE STOMACH: BASIC FUNCTIONS. Pages 19-38. The system breaks down food, extracts nutrients from it, and converts them into energy. Symptoms include ulcers, diarrhea, abdominal pain and blood in stools. The human digestive system.

Book chapter Full text access. Ulcerative Colitis. In this lesson we will look at the various organs of the digestive system and how they work together to digest and absorb food. 1 - OVERVIEW OF THE DIGESTIVE SYSTEM. The human digestive system provides the body with all the necessary carbohydrates, vitamins, fats and amino acids, that keep the estimated 50-75 trillion cells, functioning.

The novel coronavirus disease is currently causing a major pandemic. Digestive system. (2)Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong. The digestive system is a group of organs responsible for the conversion of food into absorbable chemicals which are then used to provide energy for growth and repair. Throughout this process, there are many organs that contribute to the breaking down of food. 3 - THE STOMACH: BASIC FUNCTIONS. Covid-19 and the digestive system.