Health Sciences 2330A/B Lecture : The heart - cardiovascular
29 Jan 2014
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Document Summary
Works independently of all other structures in the body: can beat intrinsically, generates own heart beat, generates pressure needed to expel blood throughout the body cardiomyopothay structures in periphery become in a state where the heart has difficulty delivering blood, works too hard (cid:224) adaptation (cid:224) dysfunctional heart heart has many structures within internal structures critical to perform functions lies in the centre of chest, not quite symmetrical apex points down to the left situated between lungs vessels bringing blood to and from heart all situated onto of the heart ( base of the heart ) positioned very anteriorly in thoracic cage, lies just behind the sternum heart sits within the pericardial sac sac is anchored to major vessels that go to and from heart at the base, and to the diaphragm, holds it in place anteriorly, sac is filled with fluid, reduces friction associated with the walls of the heart and what would be the lungs.
