Preview

The Digestive System

Better Essays
Open Document
Open Document
1945 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Digestive System
The Digestive System Why is it that 1 in 3 people perhaps even more regularly battles some kind of digestion problems? Understanding how the digestive system works will help to understand why digestive problems are so common. The digestive system is more than stomach and intestines. It is a system of organs that turns food into energy and is one of the most important functions the body performs. There are many reasons that cause so many people to suffer with digestive problems. Three of the most common reasons are the lack of knowledge of how the digestive system works, poor nutrition and undiagnosed medical conditions. Lack of knowledge of how the digestive system works is one of the many reasons that cause digestive problems. The digestive system is uniquely constructed to perform its specialized function of turning food into the energy and extracting nutrients necessary to sustain life. It does this by breaking down food into its basic nutrients, which include vitamins and minerals, fats, carbohydrates, proteins and water, before transporting them to the small intestine, where most of the nutrients are absorbed into the body. The digestive system takes place in the alimentary canal, a tube that runs from the mouth to the anus and includes the esophagus, stomach, small intestine, and large intestine, colon and rectum. The liver and pancreas also contribute to digestion, but are not part of the alimentary canal. Digestion begins in the mouth, where chemical and mechanical digestion occurs. Food inters the mouth and is chewed by the teeth, turned over and mixed with saliva by the tongue. The sensations of smell and taste from the food sets up reflexes which stimulate the salivary glands, saliva is produced by the salivary glands and is released into the mouth. Saliva begins to break down the food, moistening it and making it easier to swallow and contains a digestive enzyme called amylase which breaks down the carbohydrates (starches and

You May Also Find These Documents Helpful

  • Good Essays

    The function of the digestive system is to absorb and assimilate key nutrients which are required to maintain and regulate other systems in the body. Enzymes secreted within the digestive system have a role of breaking down food from proteins into amino acids, starch into glucose and fats into a mixture of fatty acids and glycerol.…

    • 262 Words
    • 2 Pages
    Good Essays
  • Good Essays

    When a human sees or smells food the salivary glands are the first thing to react in the digestive system. Once the food is placed into the mouth, it is then taken over by the teeth, tongue, and saliva. These three are what help make the food moist and small enough to be swallowed. At this point the food then becomes what is called bolus. The bolus is then traveled through the pharynx then esophagus, and into the stomach. When the food travels through the pharynx, the epiglottis makes sure that the food paces by the without interring the lungs. Once the bolus enters the stomach, it is then broken down even further by the acids within the stomach. The bolus becomes a little more digested before leaving the stomach. Once the food is at this stage, it is then called Chyme. Chyme is a semiliquid food. It normally leaves the stomach within two to six hours. The small intestine is what does most of the digesting and takes the nutrients from the food. It has help from the liver, pancreas, and gallbladder. The small intestine is made up of three parts, these parts are called, the jejunum, the ileum, and the duodenum. Anything that is not taken for nutrients in the small intestine goes to the large intestine. At this time it travels through what is called the sphincter. The sphincter prevents any of the food to go back into the small…

    • 483 Words
    • 2 Pages
    Good Essays
  • Good Essays

    We all love to eat. I remember my parents used to tell me that in order for my food to digest properly, I would have to chew it one hundred times on both side to make it small as possible. They said that if the food was smaller it could digest quicker and easier. But most people do not know what happens to their food after they have chewed it up and swallowed it. Some may think that right after the food is swallowed, it goes straight to the stomach. The purpose of this essay is to discuss the path food follows as it goes through the digestive system.…

    • 689 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The digestive system is the physical ad chemical breakdown of food. Following ingestion, food and fluids are processed by the digestive organs so that nutrients can be absorbed from the intestines and circulated around the body. Any residue of food that is not digested is solidified and eliminated from the body in the form of feces. (P.207)…

    • 420 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    The digestive system functions in a way which is firstly ingestion (in taking food), digestion (breaking down the food), absorption (extracting the nutrients from food) and finally defection (waste of food).…

    • 1619 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    The primary function of the digestive system is to break down the food we eat into smaller parts so the body can use them to build and nourish cells and provide energy. It also removes undigested waste at intervals. The liver is the main producer of important chemicals.…

    • 1077 Words
    • 5 Pages
    Good Essays
  • Better Essays

    This system is made up of the mouth, pharynx, oesophagus, stomach, small intestine, liver, gallbladder, pancreas and large intestine. The digestive system is responsible for the breakdown and absorption of food materials. The main source of energy in the human diet comes from carbohydrates. Digestion is the breakdown of food into simple, soluble molecules which can be absorbed by the intestine and into the bloodstream. Enzymes are produced in the body which enable the breakdown of molecules.…

    • 1348 Words
    • 4 Pages
    Better Essays
  • Satisfactory Essays

    afga

    • 360 Words
    • 2 Pages

    1. What are the functions of the digestive system? The functions of the digestive system are to break down food, down into various macromolecules in order to extract the nutrients from the food.…

    • 360 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    3

    • 1178 Words
    • 4 Pages

    In this activity, you will work with your team to design and build a model of the human digestive system. This model will be used to explain the unique structure and function of the parts of the digestive system to a middle school health class. Each structure and organ along the path has unique properties that make it ideal for its function. For example, the stomach is both…

    • 1178 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    HCS 212 wek 4 terms

    • 357 Words
    • 2 Pages

    The digestive system is a group of organs that is responsible for moving food in and out of the body.…

    • 357 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    bio short essay

    • 471 Words
    • 2 Pages

    Digestion is important for breaking down food into nutrients which the body uses for energy, growth and cell repair. When I am chowing down my steak and potatoes, my digestive system is doing that exact thing. Our digestive system breaks down food into smaller molecules and into nutrients for the body. These nutrients include carbohydrates, protein, fat and vitamins.…

    • 471 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Essay On Digestive System

    • 552 Words
    • 3 Pages

    The digestive system is a combination of organs which have been arranged together to help carry out its particular function of turning food into the energy which is necessary to survive and packaging the excess residue for waste disposal. Digestion involves the breakdown of food into smaller components.…

    • 552 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Digestive system: function is to breakdown the food we eat into smaller particles and absorbing of nutrients into the blood stream, so that the body can use them for energy,…

    • 1204 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    every part of the gastrointestinal tract is designed to help in the digestive process in a specific way. The mouth is involved in chewing also know as masticating. The purpose is to break down food into small enough pieces to pass through the esophagus and enter the stomach. The food is moistened with saliva helping turning it into bolus in order to turn initiate the digestion of food. The esophagus is a tube like muscle which use contractions to pass food from the mouth into the stomach it does not help with the digestive or absorptive function. The stomach acts like a sort of storage depot for food, but also acts as a place in which mechanical and chemical breakdown of food happens. The small intestine absorbs water, electrolytes, proteins, fats and carbohydrates. Whereas the large intestine is where the food matter and water that can’t be absorbed is the formed into stools. The rectum is a temporary storage area for feces before passed.…

    • 513 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Extended Definition Essay

    • 693 Words
    • 3 Pages

    One of the miracles of the human body is how it possesses the characteristics of machines; specifically that of a juicer. It breaks down and extracts vitamins and minerals from everything that it ingests. To be specific, the digestive system is the system of organs responsible for getting food into and out of the body and turning the food we eat into energy (Seibert, 2011). It is one of the wonders of our body that keeps us alive. In fact, keeping a healthy digestive system can actually boost one’s lifespan.…

    • 693 Words
    • 3 Pages
    Good Essays

Related Topics