Difference between revisions of "Anus"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | [[File:Anus.png|right|300px|thumb|A computer generated image showing the small intestine, large intestine, rectum and anus.]] | + | [[File:Anus.png|right|300px|thumb|A computer generated image showing the [[Small Intestine|small intestine]], [[Large Intestine|large intestine]], [[rectum]] and [[anus]].]] |
The [[anus]] is a ring of [[muscle]] at the end of the [[Digestive System|digestive system]] that holds tight until [[faeces]] is ready to be released. | The [[anus]] is a ring of [[muscle]] at the end of the [[Digestive System|digestive system]] that holds tight until [[faeces]] is ready to be released. | ||
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: When the [[muscle]]s of the [[anus]] relax then [[faeces]] can be released. | : When the [[muscle]]s of the [[anus]] relax then [[faeces]] can be released. | ||
: When the [[muscle]]s of the [[anus]] [[contract]] it holds the [[faeces]] in. | : When the [[muscle]]s of the [[anus]] [[contract]] it holds the [[faeces]] in. | ||
| − | : If the [[faeces]] does not come out when you relax then you have constipation and need to eat more [[fibre]]. | + | : If the [[faeces]] does not come out when you relax then you have [[constipation]] and need to eat more [[fibre]]. |
==Key Stage 4== | ==Key Stage 4== | ||
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: When the [[muscle]]s of the [[anus]] relax then [[faeces]] can be [[Egestion|egested]]. | : When the [[muscle]]s of the [[anus]] relax then [[faeces]] can be [[Egestion|egested]]. | ||
: When the [[muscle]]s of the [[anus]] [[contract]] it holds the [[faeces]] in. | : When the [[muscle]]s of the [[anus]] [[contract]] it holds the [[faeces]] in. | ||
| + | |||
| + | ===References=== | ||
| + | ====AQA==== | ||
| + | :[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f47 ''Anus, page 100, GCSE Biology; Student Book, Collins, AQA'] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Anus, page 46, GCSE Combined Science Trilogy 1, Hodder, AQA'] | ||
Latest revision as of 18:39, 27 October 2019
Contents
Key Stage 2
Meaning
The anus is part of the digestive system that poo comes out of.
About the Anus
- The muscles in the anus need to relax to let out the poo. You should not try to 'push' the poo out or it can cause piles.
Key Stage 3
Meaning
The anus is a ring of muscle at the end of the digestive system that holds tight until faeces is ready to be released.
About The Anus
- The anus is found at the end of the rectum.
- When the muscles of the anus relax then faeces can be released.
- When the muscles of the anus contract it holds the faeces in.
- If the faeces does not come out when you relax then you have constipation and need to eat more fibre.
Key Stage 4
Meaning
The anus is a sphincter at the end of the digestive system that holds tight until faeces is ready to be egested.
About The Anus
- The anus is found at the end of the rectum.
- When the muscles of the anus relax then faeces can be egested.
- When the muscles of the anus contract it holds the faeces in.