Autonomic Nervous System Essay

Improved Essays
1. Through which organs, and in what order does the bolus of food travel?
• The bolus of food first travels to the oral cavity, pharynx, esophagus, stomach, small intestine, and then to the large intestine.

2. How long does the food remain in each segment of the digestive tract and what physiological processing takes place during this time?
• Chemical and mechanical digestion begins in the oral cavity. Temperature, taste, texture are sensed, and the saliva helps the chemical digestion because it is secreted by the salivary glands. The breakdown of the enzymes in the saliva helps the food to be swallowed. The mechanical breakdown of the food is from the teeth, and when the food is swallowed, the pharynx is where the food is passed. The oral cavity and esophagus are connected because of
…show more content…
What role does the autonomic nervous system play in controlling the movement of food through the digestive tract? What other physical or physiological factors can impact the movement of food though the digestive tract?
• The autonomic nervous system is in control of the processes that are not voluntary controlled. It also controls the movement of food that is passed through the digestive tract. The ANS Is responsible for the secretion of hormones that help in the physiological and physical breakdowns of the food that moves throughout the digestive system.

4. What specific enzyme or other digestive substances are associated with each segment of the digestive tract and which cells produce these substances? What specific components of the chicken and rice (proteins, carbohydrates, etc.) are processed by each of these substances?
• In each segment of the digestive tract there are different substance like carbohydrates, proteins, and fats and lipids that are present. There are also different types of enzymes present like amylase, and lipase that are secreted by cells that are found in the digestive tract. Chicken has mainly protein that is processed, and rice mainly has

Related Documents

  • Improved Essays

    74-75) explained that an integral factor in enzymatic digestion is the pH of individual sections of the digestive tract. The highly acidic pH of the stomach’s gastric juice is needed to not only prevent bacterial growth, but to create an optimal environment for it’s enzymes to digest the food (now chyme) received through the cardioesophageal sphincter. The small intestine cannot handle such high pH, therefore when the stomach releases chyme into the small intestines, a signal is sent to the pancreas to release an alkaline substance called “sodium bicarbonate” to neutralize the chime’s acidic pH. Once neutralized, enzyme-rich pancreatic juices (neutral pH) work together with the enzymes of the cells found in the intestinal wall to facilitate digestion of the “three energy nutrients”. Bile (neutral pH) is secreted into the duodenum from the gallbladder (or liver-if someone is without the gallbladder) to emulsify fat for later absorption.…

    • 722 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Yabbies Lab Report

    • 1361 Words
    • 6 Pages

    Digestive track includes mouth, oesophagus, stomach, intestine and anus. It has two stomachs - The cardiac stomach is where the food is stored, where as the pyloric stomach is where most of the digestion occurs. It churns the food for mechanical digestion and uses digestive glands located either side of the stomach, producing digestive enzymes for chemical digestion. The food then passes through the antennal gland, which is the main excretory organ.…

    • 1361 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Est1 Task 2

    • 640 Words
    • 3 Pages

    Q5. Digestion begins in the mouth, where the food is cut and chopped up by your teeth. The tongue helps digest the food with a juice called saliva, which is a secreted by glands in the mouth. Saliva is important because you need it to digest food and it keeps your teeth strong.…

    • 640 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Digestive Lab Report

    • 564 Words
    • 3 Pages

    5. Describe the location(s) in the digestion tract where each of the major types of nutrients (Carbohydrates, Lipids, and Proteins) are broken down.…

    • 564 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Fetal Pig

    • 738 Words
    • 3 Pages

    The stomach secretes acid and enzymes that digest food, with secretion of begin enzymatic digestion of…

    • 738 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Crohn's Disease Model

    • 879 Words
    • 4 Pages

    My model represents the digestive system excluding the mouth. The function of the digestive system is to ingest food, extract valuable nutrients from it, then excrete the wastes. The structure of the digestive system assists this function in many ways. The mouth is able to chew the food that we eat into smaller, easier to digest pieces (Cleveland). In addition to this, it adds saliva to the food which helps with the digestive process because it contains an enzyme called amylase which breaks down carbohydrates (Taylor). This chewed food then enters the esophagus which pushes it down through a process called peristalsis, in which the walls of the esophagus contract to perform movement similar to kneading. The food then enters the stomach which…

    • 879 Words
    • 4 Pages
    Improved Essays
  • Decent Essays

    1. Ingestion- Salivary glands lubricate food particles and teeth breaks apart food as you chew.…

    • 129 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Essay On Crohn's Disease

    • 584 Words
    • 3 Pages

    The digestive system is made up of the digestive tract, the pancreases, liver and the gall bladder. Track refers to hollow organs joined from the mouth all the way to the anus. Food is ingested in the mouth and moves along the digestive tract to the anus where waste is excreted. Along the digestive tract, food is digested and broken down into smaller food components that can be absorbed and utilized by the body. Nerves, blood, bacteria and the organs work together to complete digestion task. Digestion is important for the…

    • 584 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Epiglottis Research Paper

    • 149 Words
    • 1 Pages

    The flow of food through the body begins with ingestion. The mouth chews and mixes food with saliva. Salivary glands secrete saliva, and saliva helps break down the food because it is acidic. The pharynx directs food from the mouth to the esophagus.The epiglottis protects airways during swallowing to prevent choking. The esophagus passes food from the mouth to the stomach, and the esophageal sphincters allows the transportation of the passage from mouth to stomach and prevents back flow from stomach through the esophagus to the mouth. The stomach churns, mixes, and grinds food to a liquid mass; adding acid, enzymes, and fluids. The pyloric sphincter allows passage from stomach to small intestine; preventing back flow from small intestine. The…

    • 149 Words
    • 1 Pages
    Improved Essays
  • Decent Essays

    The digestion process starts at the mouth, the wolf swallows its food and it goes down to the stomach. Then the food goes to the first intestine, there acids and digestive juices turn the food into pulp, when the food reaches the large intestine the food goes slowly so that the last pieces of nutrients can be absorbed. Lastly the waste is passed to the rectum and…

    • 139 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Digestive begins as soon as food enters the oral cavity to the esophagus. Once it passes the esophagus it enters the stomach, which digests the food and helps enter into the small intestine. The small intestine is divided into…

    • 431 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    While eating a meal, your body goes through many processes. One of the processes is known as the swallowing process. The process goes through three deglutition phases. These phases include the oral phase, pharyngeal phase, and the esophageal phase. These phases are all a part of the nervous system and include involuntary and voluntary actions. Many people go through a process called GERD that happens in the esophageal phase.…

    • 781 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Dog's Digestive System

    • 324 Words
    • 2 Pages

    The process of digestion begins after the food has passed through the mouth and traveled down the esophagus. The food then enters the stomach, and is broken down…

    • 324 Words
    • 2 Pages
    Improved Essays
  • Superior Essays

    The digestive system is made up of organs that function together to transform food substances to energy and nutrients that are needed in the body. The digestive system is made up of the alimentary canal which include the mouth or oral cavity, pharynx, esophagus, stomach, small intestines, and large intestines including the accessory organs of digestion which involve the teeth, tongue, salivary glands, liver, gall bladder and the pancreas. The alimentary canal and the accessory organs perform the following functions which include; ingestion, secretion,…

    • 1572 Words
    • 7 Pages
    Superior Essays
  • Improved Essays

    Food Digestion Essay

    • 845 Words
    • 4 Pages

    Digestion first occurs with food entering the mouth. Food is usually comprised of three macronutrients: carbohydrates, fats (lipids), and proteins. In the mouth mechanical digestion via the grinding of food between teeth and movement of the tongue help mix the food with fluid excreted by salivary glands in the mouth known as saliva. Saliva helps makes the food moist and easier to digest and sallow. More importantly saliva helps start the chemical digestion of food in the mouth because it contains various enzymes which help catalyze and speed up the breakdown of the macronutrients into their simpler components. Carbohydrates are broken down via the enzyme salivary amylase. More specifically, amylase breaks down starch (a polysaccharide) which is made up of amylose and amylopectin into smaller starch units known as disaccharides and monosaccharides. Very…

    • 845 Words
    • 4 Pages
    Improved Essays

Related Topics