Heart

1.The pump is encased in three protective spirit levels. The forther(prenominal) layer the pericardium is consisting of two layers parietal and nonrational which keeps the cheek from stretching and the new(prenominal) one is a see- by dint of membrane that forms a duplicate layer around the center of attention. amidst these layers is a gnomish inwardness of bland called pericardial fluid that gives the layers a non-stick shape up that reduces friction when the middle beats. eon the pericardium forms the outer layer of the heart, the myocardium forms the mettle centre layer and the endocardium the inmost layer. The muscular myocardium is the thickest layer and is responsible for the hearts pumping action. The endocardium is the tranquil lining of the heart and covers the valves The heart is sh ared into four put up. The two ass chambers are the left wing(p) hand and repair ventricle which contains trabecular carneae that is part of the conductive arranging of the heart. On the another(prenominal) hand, the two upper chambers are the left and indemnify atrium which receives argumentation from major veins.

In addition, the septum separates the hearts left and right side The draw likewise shows the blood flow. The deoxygenated blood (db) returns to the heart, entering either by dint of the tiptop vena cava or the inferior vena cava. The db and wherefore enters the right atrium and then flows by means of the tricuspid valve into the right ventricle. It is then pumped through the pulmonary valve into the pulmonary arteria to the lungs where its picks up the oxygen. The blood returns to the heart via pulmonary vein, enters the left atrium, descends through the mitral valve and into the left ventricle. in that location it is pumped through the aortic valve into the aorta and out to the body.If you want to position a full essay, parliamentary procedure it on our website: Ordercustompaper.com

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