blood that passes through the vessel. All blood vessels contain a hollow area called the lumen through which blood is able to flow. Around the lumen is the wall of the vessel‚ which may be thin in the case of capillaries or very thick in the case of arteries. All blood vesseles are lined with a thin layer of simple squamous epithelium known as the
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What nursing interventions are appropriate for Mrs. J. at the time of her admission? Drug therapy is started for Mrs. J. to control her symptoms. What is the rationale for the administration of each of the following medications? At the start of her admission‚ Mrs. J is going through many complications throughout most of her systems. I would follow the rules of ABC and control her respiratory problem first. Mrs. J has an oxygen saturation of 82% and is probably going to continue dropping. She will
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Cardiovascular Physiology and Blood Pressure July 27‚ 2009 BY 409L - LW Blake Perry Lab Partners: Jennifer Rastegar and John Riopka Abstract This experiment was designed to observe a baseline heart rate and blood pressure and to examine various modifications of the two. This experiment utilized both the BiopacPro and PhysioEx computer programs. The PhysioEx program was used to simulate a heart rate and modifications to it. The BiopacPro program was used to monitor a volunteer’s blood pressure;
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system. This is something that happens when the blood supply to your heart is blocked or interrupted by a build-up of fatty substances in the arteries Coronary heart disease is the term that describes what happens when your heart’s blood supply is blocked or interrupted by a build-up of fatty substances in the coronary arteries Over time‚ the walls of your arteries can become furred up with fatty deposits. This process is known as atherosclerosis and the fatty deposits are called atheroma Your risk
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of the artery walls from too much pressure. Atherosclerosis can lead to arteriosclerosis‚ which comes from the Greek for “hardening of the arteries.” The most common sites for arteriosclerosis are arteries in the brain‚ kidneys‚ heart‚ abdominal aorta‚ or legs. Symptoms of arteriosclerosis vary according to which arteries are affected. Leg pain when exercising might indicate peripheral arterial disease. Sudden weakness or dizziness could be caused by an obstruction in the carotid artery in the neck
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Lab Report: Exercise 5: Cardiovascular Physiology Type the answers to the following questions into the document. Save the file as YourLastName_Ex5LabReport.rtf and submit for grading via the associated assignment link. Activity 1: Heart Sounds 1. What is the cardiac cycle? The cardiac cycle is one complete heart beat. During the cycle each atrium and ventricle will contract and relax once. THe contraction of the chamber is called systole and the relaxation is called diastole. The average
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Blood Pressure Anatomy And Physiology Breven Sellers 11/3/2014 Arteries • Arteries are thick walled‚ yet they are elastic enough to stand pressure from the heart pumping at a fast rate. The arteries job is to transport blood away from the heart‚ usually only transporting highly oxygenated blood‚ having just left the lungs and on its way to the body’s tissues Arterioles • There are smaller branches of the arteries called arterioles‚ they connect to the capillaries. • Arterioles are the main
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Ashraf Barrada Chemistry –EH March 16th‚ 2013 Smoking Have you ever thought about what smoking does to you and the people around you? Have you ever thought of why it isn’t legal for you to smoke it at a certain age and isn’t a tolerated action? Once there was a young boy‚ who smoked when he was young and he grew up smoking a pack of cigarettes every day. Now that guy lives on hospital machines and asthma inhalers because the cigarettes have caused him to have lung failure and cancer. It has
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MYOCARDIAL INFARCTION Mechanisms of Occlusion Most MIs are caused by a disruption in the vascular endothelium associated with an unstable atherosclerotic plaque that stimulates the formation of an intracoronary thrombus‚ which results in coronary artery blood flow occlusion. If such an occlusion persists long enough (20 to 40 min)‚ irreversible myocardial cell damage and cell death will occur.5 The development of atherosclerotic plaque occurs over a period of years to decades. The initial vascular
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is comprised of 4 chambers‚ a left and right atrium and left and right ventricle. The deoxygenated blood enters the heart via a vein into the right atrium where it moves into the right ventricle before being transported to lungs via the pulmonary artery for oxygenation before returning to the heart into the left atrium. From the left atrium the now oxygenated blood
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