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digestive system coloring page

digestive system coloring page digestive system organs coloring page younger students

In the human digestive system, food enters the mouth and mechanical digestion of the food starts by the action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva. Saliva, a liquid secreted by the salivary glands, contains salivary amylase, an enzyme which starts the digestion of starch in the food; the saliva also contains mucus, which lubricates the food, and hydrogen carbonate, which provides the ideal conditions of pH (alkaline) for amylase to work. After undergoing mastication and starch digestion, the food will be in the form of a small, round slurry mass called a bolus. It will then travel down the esophagus and into the stomach by the action of peristalsis. Gastric juice in the stomach starts protein digestion. Gastric juice mainly contains hydrochloric acid and pepsin. In infants and toddlers gastric juice also contains rennin. As the first two chemicals may damage the stomach wall, mucus is secreted by the stomach, providing a slimy layer that acts as a shield against the damaging effects of the chemicals. At the same time protein digestion is occurring, mechanical mixing occurs by peristalsis, which is waves of muscular contractions that move along the stomach wall. This allows the mass of food to further mix with the digestive enzymes.

digestive system coloring page

5 thoughts on “digestive system coloring page

  1. Lots of children at higher classes cannot handle the pressure of studies mainly because they don’t know the exact process or method of learning because their preschool learning had been very much mechanical and monotonous.

  2. Inside their minds, a great imaginary world has been produced by them and each period they have the privilege of obtaining pictures to color, they will see it as a set liberal to reproduce that imaginary world on the outside.

  3. Today you may get a lot of different color-by-number online games, which can be rather effective and interesting.

  4. And color by number books reap benefits of the web progress.

  5. However, before getting ensure that you will research the best deals to locate applications your child will appreciate.

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