19,879
edits
Changes
Anus
,→Key Stage 4
: 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.
===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']