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Published byElena Stear
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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 systemmouth oesophagus liver stomach pancreas large intestine small intestine
Parts of our digestive systemmouth where food is chewed and mixed with saliva
Parts of our digestive systemoesophagus the tube that carries food to the stomach
Parts of our digestive systemstomach stores food and mixes it with digestive juices
Parts of our digestive systemsmall intestine the tube where broken down food is absorbed into the blood
Parts of our digestive systemlarge intestine passes water back into the blood leaving solid waste
Parts of our digestive systempancreas makes digestive enzymes
Parts of our digestive systemliver makes bile which helps to break down fats
What is the function of each part?mouth oesophagus liver stomach pancreas large intestine small intestine
Nutrition involves 5 stages.Ingestion Digestion Absorption Assimilation Egestion
Teeth break down food into smaller pieces (physical digestion)
There are four types of teeth.Upper or maxillary teeth Lower or mandibular teeth Incisors Canines Premolars Molars
Molars Premolars Incisors Canines
Teeth Incisors Canines Premolars Molars
Teeth Incisors – cut food Canines – tear food Premolars – grind food Molars – grind food
Review Questions: Label each part. E A F B C G D
Question to think aboutEnzymes are involved in chemical digestion. What do you think this means? Enzymes act here!
We need to digest our food Our body needs to break down our food into simpler substances. Is made up of the following organs.
Why do we need food?.
By: Katherine Pease 7th Grade Science
HUMAN Digestive system
Copyright of for more videos,visit us. Full of ingredients to make your child a genius. “Don’t make me read,
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The mouth performs two functions: 1
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The break-down of large, insoluble food molecules into small, water-soluble molecules using mechanical and chemical processes. Mechanical digestion:
Animal Nutrition Nutrients Carbohydrates Fats Proteins Vitamins C and D Calcium Iron Fiber Ingestion Egestion Minerals (Salts, Calcium and Iron) Balanced.
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