Digestive system : 200 Hour Yoga Teacher Training - PowerPoint PPT Presentation

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Digestive system : 200 Hour Yoga Teacher Training


Digestive system : 200 Hour Yoga Teacher Training in Rishikesh, India – PowerPoint PPT presentation

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Title: Digestive system : 200 Hour Yoga Teacher Training

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Digestive system
  • The digestive system is made up of the digestive
    tract, consists of a long tube of organs that
    runs from the mouth to the anus
  • includes the esophagus, stomach, small intestine,
    and large intestine, together with the liver,
    gall bladder, and pancreas, which produce
    important secretions for digestion that drain
    into the small intestine.
  • The digestive tract in an adult is about 30 feet
  • Digestion is the process by which food is broken
    down into smaller pieces so that the body can use
    them to build and nourish cells and to provide
  • Digestion involves the mixing of food, its
    movement through the digestive tract and the
    chemical breakdown of larger molecules into
    smaller molecules.
  • Every piece of food we eat has to be broken down
    into smaller nutrients that the body can absorb,
    which is why it takes hours to fully digest food.

Mouth and Salivary Glands
  • Digestion begins in the mouth, where chemical and
    mechanical digestion occurs. Saliva or spit,
    produced by the salivary glands is released into
    the mouth.
  • Saliva begins to break down the food, moistening
    it and making it easier to swallow.
  • A digestive enzyme (called amylase) in the saliva
    begins to break down the carbohydrates (starches
    and sugars).
  • One of the most important functions of the mouth
    is chewing. Chewing allows food to be mashed into
    a soft mass that is easier to swallow and digest
  • A flexible flap called the epiglottis closes over
    the trachea (windpipe) to ensure that food enters
    the esophagus and not the windpipe to prevent

  • Once food is swallowed, it enters the esophagus,
    a muscular tube that is about 10 inches long.
  • The esophagus is located between the throat and
    the stomach.
  • Muscular wavelike contractions pushes the food
    down through the esophagus to the stomach.
  • A muscular ring at the end of the esophagus
    allows food to enter the stomach, and, then, it
    squeezes shut to prevent food and fluid from
    going back up the esophagus.

  • The stomach is a J-shaped organ that lies

    between the esophagus and the
    intestine in
    the upper abdomen.
  • The stomach has 3 main functions to

    store the swallowed food
    and liquid to

    mix up the food, liquid, and digestive

    juices produced by the
    stomach and to

    slowly empty its contents into the small

  • Only a few substances, such as water and alcohol,
    can be absorbed directly from the stomach. Any
    other food substances must undergo the digestive
    processes of the stomach.
  • The stomach's strong muscular walls mix and churn
    the food with acids and enzymes, breaking it into
    smaller pieces. About 3 quarts of the gastric
    juice is produced by glands in the stomach every
  • The food is processed into a semi liquid form.
    About 4 hours or so after eating a meal, then
    slowly released a little at a time through
    a thickened muscular ring between the stomach and
    the first part of the small intestine called the

  • Small intestine
  • Most digestion and absorption of

    food occurs in the small
    small intestine is a narrow,

    twisting tube that occupies most

    of the lower
    abdomen between

    the stomach and the beginning

    of the large
  • Small intestine has 2 important

    functions. First, the digestive
    completed here by enzymes. Second,

    the small intestine absorbs the
    from the
    digestive process.
  • Large intestine
  • The large intestine forms an upside

    down U over the coiled small
  • The main job of the large intestine is to remove
    water and salts from the undigested material and
    to form solid waste that can be excreted.

Organs connected to Digestive tract
  • Liver
  • Liver is the largest solid organ in the body.
  • An organ in the upper abdomen that aids

    in digestion and removes
    waste products

    and worn-out cells from the blood.
  • Form and secrete bile that contains bile

    acids to aid in the
    intestinal absorption.
  • Pancreas
  • A fish-shaped spongy grayish-pink organ,

    connected to the duodenum
  • It makes pancreatic juices and hormones,

    including insulin.
    The pancreatic juices

    are enzymes that help digest food in the

    small intestine.
    Insulin controls the amount of sugar in the
  • Gall bladder
  • The gallbladder is a small organ that aids in the
    digestive process and stores bile produced in the
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