Physiology 2130 Lecture Notes - Lecture 8: Heart Valve, Voltage-Gated Ion Channel, Pulmonary Valve
18 Dec 2016
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160000 km of blood vessels in body: it transport oxygen and nutrients to all cells, transports carbon dioxide and waste products from cells, regulates body temperature ph, transports and distributes hormones and other substances with in body. Left atrium and ventricle: to rest of body. Wall of left ventricle is thicker than right ventricle. Left ventricle needs to contract more forcefully because blood it pumps goes to all of body. Right atrioventricular (av) valve also called tricuspid valve. Left atrioventricular (av) valve is called bicuspid or mitral valve. Passes right atrioventricular valve and into right ventricle! Right ventricle contracts sends blood to lungs through pulmonary valve then pulmonary artery. Returns to heart through pulmonary vein into left atrium. From left atrium blood enters left ventricle through left av. In lungs blood picks up o2 and drops co2 valve. Left ventricle contracts sending it to all of body through aortic valve into the aorta.
