surface 3. Describe the structure and function of each of the three layers of the heart wall. • Endocardium – inside layer of the heart wall‚ sheet of endothelium‚ lines the heart chambers and covers the fibrous skeleton of the valves • Myocadium – middle layer of heart wall‚ composed mainly of cardiac muscle‚ the layer that pumps • Epicardium – Viseral layer of the Serous Pericardium that lines the external heart surface 4. Describe the structure
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terms of revenue‚ the market for peripheral guidewires is expected to grow at a CAGR of over 6.0% from 2014 to 2020 due to increasing prevalence of peripheral vascular diseases (PVDs)‚ peripheral artery diseases (PADs)‚ abdominal aortic aneurysms (AAA) and carotid artery stenosis (CAS). North America dominated the overall market in terms of revenue share in 2013 majorly on account of the presence of high prevalence levels of cardiovascular and neurovascular disorders and sophisticated healthcare infrastructure
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through the aorta (systemic circulation). The heart has four valves that regulate the flow of blood through its chambers. Blood flow from the right atrium to the right ventricle is regulated by the tricuspid valve. The pulmonary valve regulates blood flowing into the pulmonary artery from the right ventricle. Oxygenated blood from the lungs passes through the mitral valve situated between the left atrium and left ventricle. The aortic valve regulates oxygenated blood flow from the left ventricle to
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The function of the cardiovascular system The Cardiovascular system circulates oxygen and nutrients to body cells and tissues. It also allows for removal of carbon dioxide and wastes from those cells and tissues. The cardiovascular system delivers hormones to targeted tissues‚ maintains body temperature‚ and helps defend the body. The cardiovascular system is made up of the heart‚ blood and blood vessels. The heart is the pump of the cardiovascular system. It consists of 4 chambers‚ which is
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Immediate post-operative ventricular bigeminy in a patient posted for ovarian cystectomy – A case report. Introduction Ventricular Bigeminy is a type of ventricular premature complex (VPC) where every normal sinus beat is followed by a ventricular ectopic. The characteristic feature here is wide QRS (0.14s) complexes with abnormal ST-T changes followed by a long pause. Ventricular arrhythmias are among the commonest arrhythmias that occurs in patient with or without heart disease.The peripheral pulse
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The World of Medicine (Lecture 1) Delivery of Health Care in the US Inpatient versus outpatient Community hospital versus tertiary care Community hospital – serves the common medical needs of the community Tertiary (academic) – addresses complex medical problems‚ training‚ and research (Hershey‚ Geisinger) Teaching hospital Specialty hospital (ortho‚ Meadows) Rehab hospital Prehospital versus hospital (healthcare starts before you get to the hospital) Access to care issues – over 47 million
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the right ventricle via the tricuspid valve 2. Right Ventricle - receives deoxygenated blood from the right atrium via the tricuspid valve and pumps it into the pulmonary artery via the pulmonary valve 3. LEFT ATRIUM- receives oxygenated blood from the pulmonary veins and pumps it into the left ventricle via the mitral valve. 4. LEFT VENTRICLE - receives oxygenated blood from the left atrium via the mitral valve‚ and pumps it into the aorta via the aortic valve. The largest and strongest chamber
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to the left ventricle to get pumped to the muscles so they can transport the oxygen to them. Valves The four main valves in the heart are: The two atrioventricular (AV) valves‚ the mitral valve‚ and the tricuspid valve‚ which are between the upper atria and the lower ventricles. The two semilunar valves‚ the aortic valve and the pulmonary valve‚ which are in the arteries leaving the heart. The valves allow the blood to flow in only one direction. They open and close depending on the blood
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Quiz 4 Study Guide Cardiovascular Physiology Blood flow through the heart starting with the vena cavae and ending with the aorta‚ and including the Valves. IVC/SVC → Right atrium→TRIcupsid valve→ right ventricle →Pulmonary valve → Pulmonary arteries →Lungs →Pulmonary Veins→ left atrium →mitral/bicuspid valve→ Left ventricle→ aortic valve →Aorta → body SA node and AV node functions and locations SA node= upper‚ right atrium→heart rate AV node=lower‚ right atrium→ Relays cardiac impulses
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Essay on Congestive Heart Failure According to a recent study‚ people over 40 have a 1 in 5 chance of developing Congestive Heart Failure in their lifetime. Nearly 5 million people in the United States—mostly older adults—already have Congestive Heart Failure‚ and the number of people with Congestive Heart Failure keeps rising. About 550‚000 people develop Congestive Heart Failure each year. This is because people are living longer and surviving heart attacks and other medical conditions that
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