An ==Key Stage 1=====Meaning===The '''heart''' is a part of the body in the centre of your chest.{| class="wikitable"|-|[[File:HeartLocation.png|center|200px]]|-| style="height:20px; width:200px; text-align:center;" |This picture shows where the heart is.|} ==Key Stage 2=====Meaning===The '''heart''' is an [[organ]] which pumps [[blood]] around the body.{| class="wikitable"|-|[[File:Heart.png|center|300px]]|-| style="height:20px; width:300px; text-align:center;" |A computer drawing of a [[heart]].|} ===About the Heart===: The '''heart''' is mostly [[muscle]].: The [[muscle]]s in the '''heart''' squeeze and relax to pump [[blood]].: A healthy '''heart''' beats around 70 times per minute when you are resting.: The '''heart''' beats faster when you [[exercise]].: The '''heart''' is protected by the [[Rib Cage|rib cage]]. ==Key Stage 3=====Meaning===[[File:HeartPicture.png|right|300px|thumb|A computer generated image of a [[heart]].]]The [[heart]] is an [[organ]] which pumps [[blood]] around the body.===About the Heart===: The [[heart]] is made of [[Muscle Tissue|muscle tissue]], [[Connective Tissue|connective tissue]], [[Nerve Tissue|nerve tissue]], and [[blood]].: The [[muscle]]s in the [[heart]] [[contract]] and relax to pump [[blood]].: A healthy [[heart]] beats around 70 times per minute when you are resting.: The [[heart]] beats faster when you [[exercise]].: The [[heart]] is protected by the [[Rib Cage|rib cage]].: The [[heart]] has 4 separate chambers; the [[Right Atrium]], [[Right Ventricle]], [[Left Atrium]] and [[Left Ventricle]]. {| class="wikitable"|-|[[File:HeartChambers.png|center|300px]]|[[File:HeartBloodFlow.png|center|300px]]|-| style="height:20px; width:300px; text-align:center;" |A [[diagram]] showing the 4 chambers of the [[heart]].| style="height:20px; width:300px; text-align:center;" |A [[diagram]] showing the [[blood]] flow through the [[heart]].|}: [[Deoxygenated]] [[blood]] enters the [[Right Atrium|right atrium]]. The [[atria]] contract, pushing the [[blood]] from the [[Right Atrium|right atrium]] into the [[Right Ventricle|right ventricle]]. The [[ventricle]]s contract pushing the [[blood]] out of the [[Right Ventricle|right ventricle]] towards the [[lung]]s. [[Oxygenated]] [[blood]] returns from the [[lung]]s and enters the [[Left Atrium|left atrium]]. The [[atria]] contract, pushing the [[blood]] from the [[Left Atrium|Left atrium]] into the [[Left Ventricle|Left ventricle]]. The [[Pumpventricle]]s contract pushing the [[blood]] out of the [[Left Ventricle|Left ventricle]] to the rest of the body. {|class="wikitable"|[[File:CG_Heart.gif|center]]|-| style="height:20px; width:600px; text-align:center;" |A computer generated animation of the [[heart]] pumping.|} ==Key Stage 4=====Meaning===The [[heart]] is an [[organ]] in the [[Circulatory System|circulatory system]] which pumps[[blood]] around the body. ===About the Heart===: The [[heart]] has 4 separate chambers; the [[Right Atrium]], [[Right Ventricle]], [[Left Atrium]] and [[Left Ventricle]].: [[Deoxygenated]] [[blood]] enters the [[Right Atrium|right atrium]] from the [[Vena Cava]]. The [[atria]] contract, pushing the [[blood]] from the [[Right Atrium|right atrium]] through the [[Tricuspid Valve|tricuspid valve]] into the [[Right Ventricle|right ventricle]]. The [[ventricle]]s contract pushing the [[blood]] out of the [[Right Ventricle|right ventricle]] through the [[Semilunar Valve|semilunar valve]] into the [[Pulmonary Artery|pulmonary artery]] which takes [[blood]] to the [[lung]]s. [[Oxygenated]] [[blood]] returns from the [[lung]] s through the [[Pulmonary Vein|pulmonary veins]] and enters the [[Left Atrium|left atrium]]. The [[atria]] contract, pushing the [[blood]]from the [[Left Atrium|Left atrium]] through the [[Bicuspid Valve|bicuspid valve]] into the [[Left Ventricle|Left ventricle]]. The [[ventricle]]s contract pushing the [[blood]] out of the [[Left Ventricle|Left ventricle]] through the [[Semilunar Valve|semilunar valve]] into the [[Aorta]] which takes the [[blood]] to the rest of the body.{| class="wikitable"|-|[[File:HeartDiagramKS4.png|center|400px]]|-| style="height:20px; width:300px; text-align:center;" |A [[diagram]] showing the features of the [[heart]].|} ===References=======Edexcel==== :[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Heart (structure of), page 63, GCSE Combined Science; The Revision Guide, CGP, 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 ''Heart (structure of), page 91, GCSE Biology; The Revision Guide, CGP, Edexcel '']:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Heart (structure of), pages 267, 268, GCSE Biology, CGP, Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Heart, pages 114, 116-117, GCSE Combined Science, Pearson 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 ''Heart, pages 166, 168-169, GCSE Biology, Pearson, Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Heart; cardiac output, page 117, GCSE Combined Science, Pearson 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 ''Heart; cardiac output, page 169, GCSE Biology, Pearson, 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 ''Heart; valves, page 168, GCSE Biology, Pearson, Edexcel ''] ====OCR====:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Heart, page 29, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']:[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Heart, page 36, Gateway GCSE Biology; The Revision Guide, CGP, 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 ''Heart, pages 74-77, 260-261, Gateway GCSE Biology, Oxford, 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 ''Heart; disease, pages 238-241, Gateway GCSE Biology, Oxford, 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 ''Heath; and disease, pages 208-221, 228, Gateway GCSE Biology, Oxford, 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 ''Heath; vaccinations, pages 226-227, Gateway GCSE Biology, Oxford, OCR ''] ===Extra Information==={{#ev:youtube|https://www.youtube.com/watch?v=ruM4Xxhx32U}}{{#ev:youtube|https://www.youtube.com/watch?v=GMBSU-2GK3E}}