erosion. Chapter 19 The first heart sound is produced by the: closure of the AV valves. Which of the following guidelines may be used to identify which heart sound is S1? S1 coincides with the carotid artery pulse. Which of the following cardiac alterations occurs during pregnancy? An increase in cardiac volume and a decrease in blood pressure Which of the following is an appropriate position to have the patient assume when auscultating for extra heart sounds or murmurs? Roll toward the
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Coronary Heart Disease Coronary Heart Disease (CHD) is the leading cause of death in the United States. There are many types of heart diseases that fall into this title. Two of the most popular forms of cardiovascular diseases are heart attack and stroke. The increasing amount of exposure of known risk factors for these diseases to young adults is why I feel it is necessary to promote what it takes to lead a heart healthy lifestyle in order to avoid becoming another statistic. I feel as though
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Name: Ashlei Sickles Exercise 5: Cardiovascular Dynamics: Activity 4: Studying the Effect of Blood Pressure on Blood Flow Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Pressure changes in the cardiovascular system primarily result from You correctly answered: b. changes in the force of contraction of the heart. 2. What is the driving force for blood flow? You correctly answered: d. pressure gradient 3. Which of the following is directly
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Open-heart surgery had been one of the largest life saving surgeries performed. The first successful open heart surgery was performed in 1952 by Dr. F John Lewis. He used ice to cool down the heart and slow circulation. The basis of heart surgery involves exposing the heart (open). The sternum must be sawed through to expose the heart. The heart cannot be left pumping during surgery. At first ice was used but now a heart lung machine is used. It involves hooking a tube up to the aorta. Blood goes
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Ischemic Heart Disease (IHD) Coronary heart disease (CHD)‚ also known as ’ischemic heart disease’‚ is the most common form of heart disease. There are two major clinical forms – heart attack (often known as ’acute myocardial infarction’ or AMI) and angina. 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 clogged
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Heal Heart Attack Damage There is obviously immediate danger in a heart attack and it is important that it is attended to on an emergency basis. However‚ what most people do not know is that the part of the heart that is deprived of blood supply may have suffered irreversible damage. Scar tissue is formed. The Stanford University Study on Reversing Heart Attack Damage It has been known for some time that after a heart attack‚ some heart tissue may be essentially dead‚ which makes the heart less effective
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Heart and Respiration diseases What is a cardiovascular disease? Cardiovascular disease or heart disease is a class of diseases that involve the heart or blood vessels. Cardiovascular diseases are very deadly. It remains the biggest cause of deaths worldwide. Cardiovascular disease refers to any disease that affects the cardiovascular system‚ principally cardiac disease‚ vascular diseases of the brain and kidney‚ and peripheral arterial disease. The causes of cardiovascular disease
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Congestive Heart Failure Congestive heart failure is an older name for heart failure. Congestive heart failure takes place when the heart is unable to maintain an adequate circulation of blood in the bodily tissues or to pump out the venous blood returned to it by the veins (Merriam-Webster). The heart is split into two distinct pumping structures‚ the right side of the heart and the left side of the heart. Appropriate cardiac performance involves each ventricle to extract even quantities of blood
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Change in respiratory rate during exercise Aim: To record and investigate how the breathing rate varies for the duration of light and heavy exercise. Introduction: When an individual exercises‚ the muscles being used needs extra energy from oxygen. The lungs pump oxygen to the heart‚ and then the heart pumps the oxygenated blood through the blood to the particular muscle that is working. The human body has a series of organs working together‚ which is named the respiration system. The organs involved
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The Relationship Between Work Rate And Oxygen Uptake During Incremental Submaximal Exercise Introduction Oxygen uptake () describes the rate at which oxygen is utilized by tissues (Burton et al‚ 2004). is determined by heart rate (heart beats each minute)‚ stroke volume (the volume of blood pumped from one ventricle each beat) and arteriovenous oxygen difference (difference in blood-oxygen content between arterial and venous blood). Oxygen is needed for respiration‚ the chemical process that
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