1. How does the heart change as it develops in a fetus? At first‚ the heart is just a tube. It grows so fast that it needs more space‚ so it bends and twists back‚ forming the familiar shape. During the next phase‚ the two atria are partly separate but there is just one big ventricle. The next phase begins when the two atria are completely separate and the ventricles are just beginning to separate. Finally‚ the ventricles separate completely and the heart is developed. 2. What is the largest vessel
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Cardiovascular disease is a group of things at are all combined together and are affected by this terrible disease. The things that get affected that involve the human heart are arteries‚ veins‚ blood vessels‚ and capillaries. Heart disease causes many different kinds of problems that are related to the process known as atherosclerosis. The condition happens to a person when a good size amount of plaque has built up in their arteries. The results from this occurring narrows the room inside of our
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Heart disease‚ strokes and high blood pressure The heart: Our heart is a vital organ; it is a super muscle which constantly pumps our blood around our body at a rate of 40 to 100 beats per minute for a lifetime. It never tires. The heart has two sides which are separated and each side has two chambers. Valves make sure blood can only flow in one direction. The right side receives de-oxygenated blood from the body through the vena cava and pumps it through the pulmonary artery to the lungs‚ and the
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Heart Dissection Sheep have a four-chambered heart‚ as do humans. By studying a sheep heart you can learn about your own heart at the same time. 1. Identify the right and left sides of the heart. Look closely and on one side you will see a diagonal line of blood vessels that divide the heart. The half that includes all of the apex of the heart is the left side. If you feel the heart‚ the left half will feel much firmer and more muscular than the right side. The left side of the heart has to
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Diagnosis: Heart Failure Defined: “An abnormal clinical condition involving impaired cardiac pumping that results in pathophysiologic changes in vasoconstriction and fluid retention” (Lewis‚ Heitkemper‚ Dirksen‚ O’Brien‚ Bucher‚ 2007‚ p. 821). Risk factors: Increasing age and coronary artery disease are the two main risk factors for heart failure. Heart failure may also develop by other contributing risk factors‚ such as cigarette smoking‚ diabetes‚ high cholesterol‚ obesity‚ and hypertension
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I am writing on the human heart. I will be explaining the functions and uses of the heart throughout this paper. The main focus will be on how important the heart is to our entire body’s running like a well-oiled machine and its absolute importance to our survival. The heart has four different chambers. Each side of the heart contains one ventricle and one atrium‚ meaning it has two ventricles and two atriums‚ one on each side. They are known as the right and left ventricles and the right
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The heart is one of the most important organs in your body. So what does it do? It’s function is to pump blood to all the other organs. But the heart can not function alone‚ it has other organs and blood vessels helping it. The human heart is a pear shaped and about the size of a human fist. It is made of muscle and there are three different layers. The outer layer is called the epicardium. The middle layer is called the myocardium which is made of muscles that contract. The inner layer is called
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THE HUMAN HEART The human heart is by far one of the most vital organs of the body. It has a mass that ranges from 250 grams to 350 grams. Its contraction and expansion results in 2000 gallons of blood being pumped through the body’s blood vessels per day. It’s located in the middle of the chest protected by the ribcage. Its building blocks are a unique type of muscle known as the myocardium‚ and it’s enclosed by a double-walled membranous sac known as the pericardium. The double-walled membrane
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The Rental Heart Kirsty Logan is an award-winning writer. She was born in 1984 and is currently living in Glasgow with her Girlfriend. The Rental Heart is a science-fiction short story‚ which takes place in the future. The short story is about a person‚ who‚ throughout his/her life‚ has to replace his/her heart every time he/she finds a new lover. The replaceable hearts are mechanical hearts‚ which apparently function like normal flesh-hearts even though the mechanical hearts literally shatter
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Heart Disease Stephanie Rodriguez CHCP Abstract According to the World Health Organization‚ cardiovascular disease is the most common death in the U.S. These heart attacks and strokes are responsible for more than 15 million deaths worldwide each year. Doctors assure that every day nearly 2‚500 people in many other countries around the world die from heart diseases. In my opinion‚ the heart is a major important
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