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: [[Pacemaker]]s can be used for people who have had damage to their [[heart]] that has killed the [[Nerve]] [[tissue]] that would normally send the signal around the [[heart]] for it to beat.
: [[Pacemaker]]s take the signal from the [[heart]]'s own natural [[pacemaker]] and can amplify the signal to make it stronger and bypass any [[nerve]] damage to send the signal where it needs to go.
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946381&linkCode=as2&tag=nrjc-21&linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Artificial; pacemakers, page 76, GCSE Combined Science Trilogy; Biology, CGP, AQA']
:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Artificial; pacemakers, page 82, GCSE Biology, CGP, AQA']