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digestive system and healthy diet
Updated: 4/28/2020
digestive system and healthy diet
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Storyboard Text

  • Healthy Diet
  • Functions of the Digestive System and Healthy Eating
  • Today we are learning about your digestive system and healthy diets
  • Hi! I'm HannahSmith
  • A healthy diet is balanced and has adequate amounts of all six nutrients. You should cut down on saturated fats and avoid high-sugarfoods.
  • A healthy diet is crucial for maintaining homeostasis. Your body needs six types of nutrients: water, carbohydrates, proteins, fat, minerals, and vitamins. Missing any of these nutrients could cause your body's cells to stop working correctly and affect your organs.
  • Let's take a look at some healthy food choices you can make.
  • Eating grilled chicken and fruit instead of fried chicken and French fries is another healthy option
  • You can choose to drink water instead of soda or other sugary drinks.
  • Choosing eggs and bacon for breakfast instead of a cereal with lots of sugar.
  • Another choice you can make is eating berries or some kind of fruit as a snack instead of a cookie
  • Healthy Food Choices
  • The upper digestive tract is the first step in the digestive system. It consists of the mouth, esophagus, and stomach. Mechanical and chemical digestion begins in the mouth through chewing and saliva. The food is then moved down the esophagus by peristalsis.
  • The digestive system breaks down food into energy that can be used by cells. Without the energy and nutrients the digestive system provides, your cells could not function properly, and homeostasis would not be maintained.
  • Each organ in the digestive system has its own function.
  • Next, the food enters the stomach. A churning action breaks the food down even more as it's mixed with the stomach's digestive juices.
  • Functions of the Digestive System
  • Nutrient-rich blood enters the liver from the small intestine. Any remaining undigested material enters the large intestine.
  • The small intestine also absorbs nutrients from the chyme by three main structures: the lining, villi, and microvilli. Nutrients are absorbed by villi in the duodenum, jejunum, and ileum, which are all a part of the small intestine.
  • The food is now called chyme and moves into the small intestine. Most of digestion takes place here. Enzymes and hormones from the pancreas, liver, and gallbladder enter the smallintestine to complete the digestive proccess.
  • Functions of the Digestive System
  • The digestive system works hard to digest your food, and it is important to make healthy choices to keep your cells working properly to maintain homeostasis!
  • The remaining undigested material forms a solid mass, called a feces. It is made up of undigested fiber, dead bacteria, and undigested fat and protein. The feces is stored in the rectum.
  • The rectum connects the large intestine to the anus. The feces is eliminated through the anus.
  • Functions of the Digestive System
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