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Lesson: Digestive System

Lesson: Digestive System. All living things are made up of cells. Food has to be broken down before it is transported to every cell. Our digestive system breaks down food and absorbs it so it can be transported around our bodies. Parts of our digestive system. mouth. oesophagus. liver.

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Lesson: Digestive System

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  1. Lesson: Digestive System

  2. All living things are made up of cells. Food has to be broken down before it is transported to every cell.

  3. Our digestive system breaks down food and absorbs it so it can be transported around our bodies.

  4. Parts of our digestive system mouth oesophagus liver stomach pancreas large intestine small intestine

  5. Parts of our digestive system mouth where food is chewed and mixed with saliva

  6. Parts of our digestive system oesophagus the tube that carries food to the stomach

  7. Parts of our digestive system stomach stores food and mixes it with digestive juices

  8. Parts of our digestive system small intestine the tube where broken down food is absorbed into the blood

  9. Parts of our digestive system large intestine passes water back into the blood leaving solid waste

  10. Parts of our digestive system pancreas makes digestive enzymes

  11. Parts of our digestive system liver makes bile which helps to break down fats

  12. What is the function of each part? mouth oesophagus liver stomach pancreas large intestine small intestine

  13. Nutrition involves 5 stages. Ingestion Digestion Absorption Assimilation Egestion

  14. Teeth break down food into smaller pieces (physical digestion)

  15. There are four types of teeth. Upper or maxillary teeth Lower or mandibular teeth Incisors Canines Premolars Molars

  16. Molars Premolars Incisors Canines

  17. Teeth Incisors Canines Premolars Molars

  18. Teeth Incisors – cut food tear food Canines – grind food Premolars – grind food Molars –

  19. Review Questions: Label each part. E A F B C G D

  20. Question to think about Enzymes are involved in chemical digestion. What do you think this means? Enzymes act here!

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