There are 6 main functions of the human digestive system process. The main accessory organs of the digestive system are the tongue, liver, pancreas and gall bladder. Unit ten digestive system page 1 draft copy unit 10 digestive system lecture notes 10. The function of the digestive system is to break down the foods you eat, release their nutrients, and absorb those nutrients into the body. Introduction the digestive system is used for breaking down food into nutrients which then pass into the circulatory system and are taken to. Common diseases of the digestive system health hearty. The digestive system, in a functional sense, starts at the mouth, with the teeth used to capture prey or collect plant foods. The digestive system we need food for cellular utilization. The major means of propulsion is peristalsis, a series of alternating contractions and relaxations of smooth muscle that lines the walls of the digestive organs and that forces food to move forward. Human digestive system includes gastrointestinal tract and other accessory parts like the liver, intestines, glands, mouth, stomach, gallbladder. Digestion is the process of breaking down food into components the body can absorb.
The digestive organs includes all organs involved with 1 digestion the mechanical and chemical breakdown of food into a usable form, 2 absorption the movement of. The liver has multiple functions, but its main function within the digestive system is to process the nutrients absorbed from the small intestine. Accessory organs are organs which are not part of the digestive system, however, they aid in the digestion process by performing many secondary functions. The limit of voluntary dry matter consumption is 3. The digestive system the proper functioning of the gastrointestinal gi tract is imperative for our well being and life long health. Celiac disease or gluten intolerance is another common digestive system disease. The treatment of food in the digestive system involves the following seven processes.
Six major functions take place in digestive system. Swine, horses, dogs, and rabbits have this type of digestive system. The digestive system digestive system built around an alimentary canal oneway tube includes mount, pharynx, esophagus stomach small intestine large intestine salivary glands, pancreas, liver the digestive system to return to the chapter summary click escape or close this document. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Swallowing is a complicated process that involves the coordinated activity of several structures tongue, soft palate, pharynx, and esophagus. The digestive system is a broader term that includes other structures, including the accessory organs of digestion, such as the liver, gallbladder, and pancreas. Fowl also have a monogastric digestive system, although the diges. The pharynx and esophagus have no digestive function. Concise text covers the core anatomy, physiology and biochemistry in an integrated manner as required by system and problembased medical courses. Functions of the human digestive system human physiology.
Overview and digestive system handout prepared by karen l. Clearly label the parts of the system and briefly mention their functions. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Most fishes are predacious, feeding on small invertebrates or other.
Bile salts containing micelles are required for efficient absorption of fatty acids, monoglycerides. Although the small intestine is the workhorse of the system, where the majority of digestion occurs, and where most of the released nutrients are absorbed into the blood or lymph, each of the digestive system organs makes a vital contribution to this process. Secreting mucus and moving food from the throat to the stomach using muscle movement called peristalsis mouth, pharynx and esophagus video. The general anatomical features of the digestive tube are listed below. The main function of the digestive system is to break down food so that it can be used by the body for energy, cell growth, and repair. The digestive system is made up of the digestive tracta series of hollow organs joined in a long, twisting tube from the mouth to the anusand other organs that help the. Bacteria in the gi tract, also called gut lora or microbiome, help with digestion. Digestive system turns food and drink into nutrients. A summary of the digestive system digestive system. Digestionmechanical and chemical breakdown of material. Structure and functions of digestive system the alimentary canal of insects is a long, muscular, and tubular structure extending from mouth to anus.
The digestive system is not only uniquely constructed to perform its specialized function of turning food into the energy but also responsible for packaging the residue for waste disposal. Lancour national rules committee chairman life science disclaimer this presentation was prepared using draft rules. The gi tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. It is a type of autoimmune disease that affects the small intestine. Parts of the nervous and circulatory systems also play roles in the digestive process. Bile from the liver secreted into the small intestine also plays an important role in digesting fat. Reduced secretion of digestive enzymes at the surface of villous tip cells is characteristic of epitheliotropic viral infections recognized in farm animals. It is essential to good health because if the digestive system shuts down, the. Ingestion is the introduction of solid or liquid food into the stomach. The major functions of the digestive tract include the following six processes, summarized in figure 1. Digestive juices and enzymes play an important role in breaking down feed for absorption.
Food propulsionswallowing and peristalsis food must first be swallowed. The major functions of the digestive system are outlined as follows table 24. The rules which will be in your coaches manual and student manuals will be the official rules. Motilitymovement of material from the oral cavity to the. The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion the tongue, salivary glands, pancreas, liver, and gallbladder. Human digestive system, the system used in the human body for the process of digestion. You should be able to find all terms in bold on the human torso models. Ductile cells produce sodium bicarbonate which helps neutralize the acidic gastric contents. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
Functions of the digestive system objective describe the processes involved in the functioning of the digestive system. The digestive system is made up of the gastrointestinal tractalso called the gi tract or digestive tractand the liver, pancreas, and gallbladder. The basic science is presented in the clinical context in a way appropriate for the early part of the medical course. Propulsion is the movement of food along the digestive tract. The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into forms absorbable into the bloodstream. Horse digestive system the unknown words from a practical standpoint, the following should be borne in mind relative to the horse digestive system. The digestive system diagram, organs, function, and more. There may be some changes in the final copy of the rules. Monogastric digestive system f digestion begins when feed. Components of this tube, the various organs of the system, are specialized to perform particular functions. Horse digestive system and its function for horse care and. Here we explain the organs and processes that enable our bodies to convert food into sports performance. Overview of the digestive system anatomy and physiology ii. The digestive system the digestive system is made up of the digestive tracta series of hollow organs joined in a long, twisting tube from the mouth to the anusand other organs that help the body break down and absorb food see figure.
The liver has multiple functions, but two of its main functions within the digestive system are to make and secrete an important substance called bile and to process the blood coming from the. The ability of the gi tract to digest food depends on its motor and secretory functions and, in herbivores, on the activity of the microflora of the forestomachs of ruminants, or of the cecum and colon of horses and pigs. The mouth, stomach, intestines, gallbladder, pancreas and more play important roles in digesting food and eliminating waste. Create a map of the digestive system that shows how your favorite food passes through the digestive process. Mouth shape and tooth structure vary greatly in fishes, depending on the kind of food normally eaten. The food that you eat gives you not only the required energy and nutrients to the body but also is used for cell growth. Acinar cells of the exocrine pancreas produce a variety of digestive enzymes to break down food substances into smaller absorbable molecules.
724 628 1311 400 191 1591 458 1162 1493 51 1456 518 1183 874 524 1229 558 954 1448 494 968 8 1345 1473 203 997 411 371 619 1026 656 183 655 346 844 1371 440 410 811 1317 1251