The Digestive System Spider Map
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The Digestive System & Processes
By Oliver Smith
Digestion is the process by which the food we eat is broken down into nutrients that can be used by the body. The digestive system has a number of different, well adapted parts that work together to take food from bite-size to useful molecules that your body can use. The following activities aim to introduce students to this process with fun visual aids.
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Storyboard Description
Parts of the Digestive System organs Diagram - science activities
Storyboard Text
- Slide: 1
- ESOPHAGUS
- This is a fibromuscular tube which connects the mouth to the stomach. Food is pushed down using a wave-like muscular motion called peristalsis.
- Slide: 2
- STOMACH
- The stomach is a muscular organ where food is mixed with gastric juices. Gastric juice has a low pH and it is used to help digest food and kill potentially harmful bacteria.
- Slide: 3
- SMALL INTESTINES
- The small intestines have three parts: the duodenum, the jejunum and the ileum. Here, food is mixed with enzymes and bile. The enzymes speed up the digestion process. Nutrients are then absorbed into the bloodstream.
- Slide: 4
- LARGE INTESTINES
- The large intestines are made up of two parts: the colon and the rectum. In the colon, water is reabsorbed from the food. Feces is stored in the rectum.
- Slide: 5
- ANUS
- The anus is where feces leaves the alimentary canal.
- Slide: 6
- MOUTH
- The mouth is where food enters the alimentary canal. It is chewed by teeth which start to break food down. Food is mixed with saliva containing enzymes.
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