Heart Dissection September 30‚ 2012 Introduction/Purpose In this lab experiment‚ I examined a pig’s heart and compared it to a human’s heart. The pig’s heart is very similar to a human’s heart by having the same structures‚ veins‚ valves‚ and chambers. I was unable to perform hands on examination on a human heart so I examined a pig’s heart. I was able to identify major areas of the heart and dissect it to examine the inside chambers and valves. This
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What is the heart? The heart is the organ that supplies blood and oxygen to all parts of the body. It is about the size of a clenched fist‚ weighs about 10.5 ounces and is shaped like a cone. The heart is located in the chest cavity just posterior to the breastbone‚ between the lungs and superior to the diaphragm. The heart is surrounded by a fluid filled sac called the pericardium. Blood is pumped away from the heart through arteries and returns to the heart through veins. The major artery of the
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Heart disease describes many conditions that affect a person’s heart. This includes many conditions from diseases of blood vessels‚ problems in heart rhythm‚ and conditions of heart defects (“Heart Disease”). More than 610‚000 people die each year because of heart disease and 735‚000 die of heart attacks‚ making heart disease the number one leading cause of the death in the U.S. (“Heart Disease Facts”). There are many causes that have been linked to heart disease such as high blood pressure‚ diabetes
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Coronary Heart Disease Overview The most common form of heart disease is Coronary disease (CHD)‚ and so this is the disease I will investigate. CHD refers to the build up of plaque in the arteries supplying oxygenated blood to the heart‚ also known as Atherosclerosis. The plaque is made up of cholesterol‚ fat and other substances found in the blood. When this build up of plaque occurs‚ the artery narrows‚ as shown in Figure. This will restrict blood flow to the heart‚ and so the heart will be
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“The Broken Heart” Analysis In John Donne’s poem‚ “The Broken Heart”‚ Donne shows the predacious nature of love and the true faintness of the heart through the use of metaphors. This poem sets a mood of despair and sorrow; moods that reveal the regret of love. It opens the reader’s eyes to realize just how vulnerable the heart can be when dealing with love. Donne associates love with the negative; he portrays it as some evil entity that overtakes people without warning and‚ if not careful‚ destroys
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Function of the Body: Heart Dissection This assignment will describe my personal experience whilst participating in a heart dissection. It will explain the internal and external heart structure and detail the structure of blood vessels in relation to their function. This assignment will also describe what I did‚ saw and felt during my participation. My first thought when the sheep’s heart was given to our group was how fatty it looked to be. At first glance‚ the heart seemed to be covered
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Chronic renal failure is a worldwide public health problem. Millions of Americans are affected by this disease each year. It is a common condition in which there is progressive loss of kidney functioning. The loss of function usually takes months or years to occur‚ sometime not appearing until kidney function is less than one-tenth of normal. The kidneys have the important job of filtering‚ wastes and excess fluids from your blood‚ which are then excreted in the urine (Huether‚ 2012). When the kidneys
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The Effect of Exercise on Heart Rate The aim of this investigation is to find out how different types of exercise can affect my heart rate. To measure and record my heart rate‚ I am going to undergo an experimental test. I am going to do 3 different types of exercise: walking‚ light jog and lastly hard running. First‚ I will draw out a table to record my results‚ and then I will measure my resting heart rate for one minute. To make the experiment as accurate as possible‚ I will
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The heart is an organ that acts as a ‘’pump’’ because it pumps blood continuously that is rich in a high concentration of oxygen throughout the organs of the human body such as the brain. Blood is carried through tube like structures called blood vessels such as the artery and the vein. The arteries carry blood from the heart at high pressure which contains a high concentration of oxygen and nutrients to supply the organs. Veins carry blood at low pressure to the heart which contains a high concentration
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Coronary Heart Disease Coronary heart disease‚ also called coronary artery disease or ischemic heart disease‚ it characterized by an inadequate supply of oxygen-rich blood to the heart muscle (myocardium) because of narrowing or blocking of a coronary artery by fatty plaques. If the oxygen depletion is extreme‚ the effect may be a myocardial infarction (heart attack); if the deprivation is insufficient to cause infarction (death of a section of heart muscle)‚ the effect may be angina pectoris
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