Difference between revisions of "Digestive System"
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| style="height:20px; width:200px; text-align:center;" |In the '''digestive system''' the [[pancreas]] produces enzymes to chemically break down food. | | style="height:20px; width:200px; text-align:center;" |In the '''digestive system''' the [[pancreas]] produces enzymes to chemically break down food. | ||
| style="height:20px; width:200px; text-align:left;" | | | style="height:20px; width:200px; text-align:left;" | | ||
− | *The [[Small Intestine|small intestine]] [[Absorb ( | + | *The [[Small Intestine|small intestine]] [[Absorb (biology)|absorbs]] nutrients. |
− | *The [[Large Intestine|large intestine]] [[Absorb ( | + | *The [[Large Intestine|large intestine]] [[Absorb (biology)|absorbs]] water. |
*The [[rectum]] stores [[faeces]]. | *The [[rectum]] stores [[faeces]]. | ||
*The [[anus]] holds the [[faeces]] in. | *The [[anus]] holds the [[faeces]] in. | ||
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Revision as of 11:31, 14 September 2018
Contents
Key Stage 2
Meaning
The digestive system is the parts of the body that we use to get nutrients out of our food.
About The Digestive System
- The digestive system breaks food down into small pieces.
- The small pieces can then be absorbed into the body.
- The bits the body does not need leave the body as faeces.
- The digestive system is made up of several parts:
Key Stage 3
Meaning
The digestive system is an organ system that breaks down food for absorption into the blood.
About The Digestive System
- The digestive system breaks down food mechanically and chemically before absorbing nutrients into the blood.
- The digestive system takes large insoluble molecules and breaks them down into small soluble molecules to be absorbed.
There are several organs in the digestive system you should know:
- Mouth - Breaks down food mechanically with teeth and adds saliva using the salivary glands to make food easier to swallow.
- Oesophagus - Uses peristalsis to move food from the mouth to the stomach.
- Stomach - Starts chemical digestion of food in an acidic environment.
- Liver - Makes bile to neutralise stomach acid and break down fat.
- Pancreas - Makes enzymes to chemically digest food.
- Small Intestine - Absorbs food into the blood through villi
- Large Intestine - Absorbs water from undigested food called faeces.
- Rectum - Stores faeces before egestion.
- Anus - A ring of muscle that holds faeces in.
The mouth is an organ is used to start digestion of food. | The oesophagus is an organ that connects the mouth to the stomach. | The stomach is an organ that digests food. |
In the digestive system the liver produces bile which neutralises the acid from the stomach and helps break down fat. | In the digestive system the pancreas produces enzymes to chemically break down food. |
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