The Human Heart The Human Heart is one of the most important organs in the entire human body. The heart is a muscular organ that acts like a pump to continuously send blood through the body. The heart beats approximately about seventy-two times per minute of our lives. Without the heart’s pumping action‚ blood can’t circulate within the human body. The heart is enclosed in a double walled sac called the Pericardium. The pericardium has outer and inner coats. The outer coat is tough and thickened
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million Americans suffer a heart attack every year‚ and almost half a million die‚ according to the American Heart Association. A heart attack often is the first symptom of coronary artery disease. The blockage usually is caused by atherosclerosis‚ the build-up of plaque in the artery walls‚ and/or by a blood clot in a coronary artery. A slow buildup of this plaque may almost block one of your coronary arteries. The cause of the heart is not always known. Heart attacks may occur when you are
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States have heart attacks and almost half of them die. Even though heart attacks isn’t the end of a person’s life‚ people can still live an active‚ productive life after a heart attack‚ because people can live healthier lives and people can go about doing things like before. This disease will take you by surprise all of a sudden. It may be surprising that while many women believe breast cancer is most threatening to them‚ it is a fact that they are eight times more likely to die of a heart attack. There
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most beautiful heart in the whole valley. A large crowd gathered and they all admired his heart for it was perfect. There was not a mark or a flaw in it. Yes‚ they all agreed it truly was the most beautiful heart they had ever seen. The young man was very proud and boasted more loudly about his beautiful heart. Suddenly‚ an old man appeared at the front of the crowd and said “Why your heart is not nearly as beautiful as mine.” The crowd and the young man looked at the old man’s heart. It was beating
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The Artificial Heart The artificial heart is an extra pumping chamber that can pump blood throughout the body. The heart is a muscular pump that maintains oxygen and blood circulation through the lungs and body. Our heart pumps about 2‚000 gallons of blood throughout the day. An adult’s heart pumps blood at a rate of 60 to 100 beats per minute. The heart has two stages‚ in the first stage the left and right Atria contract at the same time pumping blood through the left and right ventricle. In the
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The term “heart failure” sounds as if the heart has already failed. This can increase a person’s anxiety especially in the aging population that is a targeted community for this disease assuming that the failure is equivalent to death. Heart failure is actually the decline in the hearts ability to sufficiently pump oxygenated blood to the rest of the body. Many people can live with heart failure and are able to manage it through lifestyle changes‚ prescribed medication compliance‚ and regular physician
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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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