cardio-vascular system

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powerpoint presentation cardio-vascular system definition the cardiovascular system: is a closed system of the heart and blood vessels the heart pumps blood into blood vessels then blood vessels circulate the blood to all parts of the body, to all cells. the functions: to deliver oxygen and nutrients to all body cells, transport enzymes and hormones, and to remove carbon dioxide and other waste products from the cells a) anatomy of the heart location in thoracic cavity in the mediastinum, between the lungs. the heart is medial to the lungs, posterior to the sternum. anterior to the vertebral column. and superior to the diaphragm. its distal end, the apex, points to the left, terminating at the level of the 5th intercostal space. the heart coverings of the heart: anatomy the function of the pericardium: protects and anchors the heart prevents overfilling of the heart with blood allows for the heart to …
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veins vessels conveying blood away from the heart include: pulmonary trunk, which splits into right and left pulmonary arteries ascending aorta (three branches) – brachiocephalic left common carotid subclavian arteries external heart: anterior view external heart: posterior view atria of the heart atria are the receiving chambers of the heart pectinate muscles mark atrial walls blood enters right atria from superior and inferior venae cavae and coronary sinus blood enters left atria from pulmonary veins ventricles of the heart ventricles are the discharging chambers of the heart papillary muscles and trabeculae carneae muscles mark ventricular walls right ventricle pumps blood into the pulmonary trunk left ventricle pumps blood into the aorta gross anatomy of heart: frontal section thickness of myocardium varies according to the function of the chamber atria are thin walled, deliver blood to adjacent ventricles ventricle walls are much thicker and stronger right ventricle supplies blood to the …
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etween the atria and the ventricles av valves prevent backflow into the atria when ventricles contract chordae tendineae anchor av valves to papillary muscles semilunar valves prevent backflow of blood into the ventricles aortic semilunar valve lies between the left ventricle and the aorta pulmonary semilunar valve lies between the right ventricle and pulmonary trunk heart valves heart valves atrio-ventricular valve function (b) semilunar valve function image1.jpeg image2.jpeg image3.jpeg image4.jpeg image5.jpeg image6.jpeg image7.jpeg image8.jpeg image9.jpeg image10.jpeg image11.jpeg image12.jpeg image13.jpeg image14.jpeg image15.jpeg image16.png /docprops/thumbnail.jpeg
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powerpoint presentation cardio-vascular system definition the cardiovascular system: is a closed system of the heart and blood vessels the heart pumps blood into blood vessels then blood vessels circulate the blood to all parts of the body, to all cells. the functions: to deliver oxygen and nutrients to all body cells, transport enzymes and hormones, and to remove carbon dioxide and other waste products from the cells a) anatomy of the heart location in thoracic cavity in the mediastinum, between the lungs. the heart is medial to the lungs, posterior to the sternum. anterior to the vertebral column. and superior to the diaphragm. its distal end, the apex, points to the left, terminating at the level of the 5th intercostal …

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