Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Digestive System Science Differentiation in action
Document related concepts
no text concepts found
Transcript
Lesson: Digestive System Science Differentiation in action All living things are made up of cells. Food has to be broken down before it is transported to every cell. Science Differentiation in action Our digestive system breaks down food and absorbs it so it can be transported around our bodies. Science Differentiation in action Parts of our digestive system mouth oesophagus liver large intestine stomach pancreas small intestine Science Differentiation in action Parts of our digestive system mouth where food is chewed and mixed with saliva Science Differentiation in action Parts of our digestive system oesophagus the tube that carries food to the stomach Science Differentiation in action Parts of our digestive system stomach stores food and mixes it with digestive juices Science Differentiation in action Parts of our digestive system small intestine the tube where broken down food is absorbed into the blood Science Differentiation in action Parts of our digestive system large intestine passes water back into the blood leaving solid waste Science Differentiation in action Parts of our digestive system pancreas makes digestive enzymes Science Differentiation in action Parts of our digestive system liver makes bile which helps to break down fats Science Differentiation in action What is the function of each part? mouth oesophagus liver large intestine stomach pancreas small intestine Science Differentiation in action Nutrition involves 5 stages. Ingestion Digestion Absorption Assimilation Egestion Science Differentiation in action Teeth break down food into smaller pieces (physical digestion) Science Differentiation in action There are four types of teeth. Upper or maxillary teeth Lower or mandibular teeth Incisors Canines Premolars Molars Science Differentiation in action Molars Premolars Incisors Canines Science Differentiation in action Teeth Incisors Canines Premolars Molars Science Differentiation in action Teeth Incisors – cut food Canines – tear food Premolars – grind food Molars – grind food Science Differentiation in action Review Questions: Label each part. E A F B C G D Science Differentiation in action Question to think about Enzymes are involved in chemical digestion. What do you think this means? Enzymes act here!
