An ==Key Stage 4=====Meaning===[[File:NervousSystem.png|right|300px|thumb|A [[diagram]] showing the '''spinal cord''' in the [[Nervous System|nervous system]].]] The '''spinal cord''' is an [[organ]] in the [[Nervous System]] that is made of a bundle of [[Nerve|nerves]] running inside the [[backbone]]. ===About the Spinal Cord===: The '''spinal cord''' is part of the [[Central Nervous System|central nervous system]].: The '''spinal cord''' is the location of [[Relay Neuron|relay neurons]] in the [[Reflex Arc|reflex arc]].{| class="wikitable"|-|[[File:SpinalCordCrossSection.png|center|400px]]|-| style="height:20px; width:200px; text-align:center;" |A cross section of the '''spinal cord''' showing the [[Relay Neuron|relay neuron]] in blue.|} ===References=======AQA==== :[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Spinal cord, page 69, GCSE Biology; The Revision Guide, CGP, 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=27ad53b0283feeff7fc5ae04a9e205f519 ''Spinal cord, pages 173, 174, 176-9, GCSE Biology; Student Book, Collins, AQA ''] ====Edexcel==== :[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Spinal cord, page 27, GCSE Biology; The Revision Guide, CGP, Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Spinal cord, pages 39, 42, GCSE Biology, Pearson, Edexcel ''] ====OCR====:[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Spinal cord, page 97, Gateway GCSE Biology, Oxford, OCR '']