Cardiovascular Presentation - Aidan Faulds Mrs Preston...

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Aidan Faulds Mrs. Preston Kinesiology November 8, 2016 Cardiovascular Presentation: Summary The pages I was assigned was pages 235-237 and that goes over the atrioventricular node, arteries, arterioles and capillaries which are a part of the vascular system and blood flow. The electrical signal that journey’s to the bottom of the atria and passes through a specialized region of tissue that separates the two ventricles is known as the atrioventricular node (AV node). The specialized tissue inside of the ventricular spectrum is called the atrioventricular bundle and they split off into right and left bundle branches. These branches pass the electrical signal to Purkinje fibres which then finally transmit the signal to the myocardium which forms the ventricles. The specialized tissue allows the heart to contract in the atria from up to down sending blood into the ventricles. The sinoatrial node (SA node) is the “pacemaker” of the heart and in some situations where the SA node is damaged, the AV node fills in and takes its place as the pacemaker. The
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