then used to inflate the rubber cuff to a pressure greater than systolic pressure . That pressure being put on the artery allows it to flatten‚ and stop blood flow in the artery. The stethoscope is then placed on the brachial artery in the antecubital (bend in elbow). Pressure is gradually released by opening a valve. When blood pressure is greater than the pressure in the cuff‚ the artery opens and blood flow returns . The person taking the blood pressure will then listen for korotkoff sounds which
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Smoking and the Heart The effects of smoking on your heart are devastating. Nicotine raises blood pressure and makes the blood clot more easily. Carbon monoxide robs the blood of oxygen and leads to the development of cholesterol deposits on the artery walls. All of these effects add up to an increased risk of heart attack. In addition‚ the poor circulation resulting from cholesterol deposits can cause strokes‚ loss of circulation in fingers and toes and impotence. Smoking and the Body’s Organs
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gives rise to thirst. Hypovolemia is detected by vascular stretch receptors which are found in the walls of heart and vasculature (Gauer & Henry‚ 1963). During hypovolemia‚ angiotensin II levels in plasma increase due to low pressure in the renal artery that stimulates renin release. The brain is then informed about the changes in volume by inputs from the heart and baroreceptors located on the blood vessels relayed through the nucleus tractus solitarii in the dorsal part of the medulla (Unger‚ 2001)
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of cardiovascular disease being one of the most common causes of disease associated mortality being that there is an increase in urbanization‚ industrialized lifestyle and decrease physical activity as well as socio-economic conditions. Coronary artery disease and heart attacks are the most prevalent cardiovascular disease seen in the United States as well as in Iran. The use of pacemakers has greatly improved the conditions of patients with certain cardiac diseases. The pacemaker is an implantable
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Vessel Health Smoking changes the structure of blood vessels. This can lead to the buildup of plaque that hardens and narrows the vessels‚ causing a disease called atherosclerosis. Atherosclerosis is a common cause of heart attacks and peripheral artery disease. Smoking increases your likelihood of developing high blood pressure. The carbon monoxide inhaled from cigarette smoke interferes with the way oxygen is carried by your blood to organs‚ including the heart‚ which links it to heart disease
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blood pressure. Once the cuff deflate‚ it is done checking your blood pressure. There are two numbers that shows up on the monitor screen. The top number takes measurements of the pressure in the arteries when the heart is beating. The lower number takes measurements of the pressure in the arteries between heart beats. Both numbers are important when measuring your blood pressure. Normally the doctor takes your blood pressure three different times at each doctor visit. The reason why is because
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Torie Soriano Physiology Lab Report The Effects of Exercise on the Cardiovascular System Introduction Exercise has a major impact on the cardiovascular system and its efficiency in the human body. There are many concepts which need to be examined to understand exercise and the cardiovascular system‚ such as systolic and diastolic blood pressure‚ cardiac output‚ total peripheral resistance‚ and physiological pathways. According to the European Journal of Cardiovascular Prevention and Rehabilitation
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common cardiomyopathies are extrinsic. This is because the most common cause of a cardiomyopathy is ischemia. Ischemic cardiomyopathy is basically weakness in the muscle of the heart due to inadequate oxygen delivery to the myocardium. Coronary artery disease is the most common cause for this lack of oxygen‚ but anemia and sleep apnea have
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Heart Rate Anticipatory Response: Anticipatory heart rate is the rate that the heart reaches before the start of exercise. Your heart rate usually picks up as a result of the anticipatory heart-rate response‚ this happens before exercise. When thinking about exercising before actually starting‚ the nerves that release the chemicals that adjust your heart rate increase the heart rate. The body expects exercise and therefore prepares for the activity‚ increasing the amount of oxygen being delivered
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some symptoms including: swelling in the feet and hands‚ the addition or subtraction of weight before swelling due to fluid excessive‚ short in breathing‚ fatigue continuously‚ feel discomfort in the chest and arm due to a blockage of the coronary arteries. Heart failure is a condition of pathophysiologic in the form of cardiac dysfunction so that the heart can not pump the blood to
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