gov/pmc/articles/PMC437139/. Last accessed 03/03/2013. Gill‚ S. Kristensen‚ S.D. (2012). Vascular Disease. Available: http://www.netdoctor.co.uk/diseases/facts/vasculardiseases.htm. . Last accessed 17/04/2013. Hicks‚ R. (2009). Chronic obstructive pulmonary disease (COPD). Available: http://www.bbc.co.uk/health/physical_health/conditions/copd1.shtml. Last accessed 13/03/2013. Medical Research Council. (2006‚ updated 2007). Smoking. Available: http://www.mrc.ac.uk/Achievementsimpact/Storiesofimpact/Smoking/index
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How microscopes have contributed to our understanding of living organisms There are 2 types of microscopes these are; light microscope and electron microscope. Light microscopes use a beam of light however the resolution is lower than the electron microscope so the image is not clear‚ however they can view living organisms. These types of microscopes are used in schools to view simple cellular structures‚ which is good to teach simple biology Mitosis and meiosis can be seen with light microscopes
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involved. Deoxygenated blood enters the right atrium from superior and inferior vena cava after having been circulated through the body. ----------------------- From the right atrium‚ blood moves to the right ventricle and is pumped through the pulmonary artery to the lungs‚ where it receives oxygen. ----------------------- Oxygenated blood from the lungs then returns to the left atrium of the heart. ----------------------- Blood from the left atrium moves into the left ventricle. -----------------------
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Riya Ragbarsingh General Biology Dr. Samira Ziaei-Halaby May 8‚ 2012 Myocardial Infarction Myocardial Infarction also known as “heart attack”‚ is when a damaged muscle or artery is blocked preventing the blood to flow through. Because of fast food places such as McDonalds‚ Burger King‚ Wendy’s and etc… Most Americans prefer eating outside than having a healthy home cooked meal. Many people do not realize the amount of fatty and oily substances that are in the meals that are being cooked
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fluid builds up‚ causing swelling in your feet‚ ankles and legs causing edema. Fluid builds up in the lungs causing pulmonary congestion. The backup of fluid causes the body to not get enough blood‚ food and/or oxygen. Heart failure is cause by many things‚ but the most common is coronary artery disease (CAD). CAD occurs when fatty deposits called plaque buildup in the arteries that supply blood to the heart muscle. Other risk factors include past heart attacks‚ heart defects from birth‚ high
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At the point when blood streams from the heat it travels through blood vessels. There are five fundamental types of blood vessels: arteries‚ arterioles‚ capillaries‚ venules‚ and veins. There are three basic layers of a blood vessel: tunica interna‚ tunica media‚ and tunica externa. The inner lining of a blood vessel that comes into direct contact with blood is the tunica inerna. In this layer blood flows through the blood vessel in a tube that forms‚ this tube is called the lumen. There are three
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the toilet in time”). Physical examinations demonstrate S3 gallop. Cardiomegaly is present and cardiac output is decreased (evidenced by Echo result “mildly enlarged left atrium‚ ejection fraction 35%”). Other evidence includes a history of coronary artery disease and hypertension. (Brashers‚ 2012b). Diastolic heart failure is also
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Pulmonary Complications: Diaphragmatic breathing exercises or Incentive Spirometry? Postoperative care is an essential role in nursing practice. It prevents postoperative complications that may arise due to surgeries. Postoperative care includes a pathway of healing and recovering leading to prophylaxis of many pulmonary complications. Postoperative pulmonary complications include respiratory failure‚ pneumonia‚ and atelectasis. Preventing such complications is important in the clinical setting because
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hypertension (CH) is a constantly elevated blood pressure. Peripheral vascular disease (PVD) causes a restriction in blood circulation due to atherosclerosis‚ fatty deposits on the inner linings of the arteries that cause a blockage of blood flow; arteriosclerosis‚ loss of elasticity in the arteries themselves; or both. Restricted peripheral blood flow causes an increase in blood pressure because the heart would have to pump with more force to maintain proper cardiac output. Hypertension strains
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a chest x-ray (to determine the size of the heart and pulmonary congestion)‚ 12-lead electrocardiogram (to assess conductivity and arrhythmias)‚ and a 2-dementional echocardiogram (to obtain information about the heart’s structure and function‚ including EF). Yancy et al. (2013) stated that in some cases‚ magnetic resonance imaging can provide a more precise determination of the EF; invasive evaluation such as monitoring with pulmonary artery catheter and endomyocardial biopsy should not be routinely
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