SURFACE VIEW OF HEART Position‚ Shape and Size of the Heart: The human heart is located between the lungs in the thoracic cavity (i.e. it is not situated on the left side of the chest). The heart is a hollow‚ fibro-muscular organ and is somewhat conical in shape. It is about the size of one’s fist‚ measures about 12 cm in length and 9 cm in breadth. Its weight is about 300 g in an adult. The heart is enclosed in pericardium (a double- layered membranous sac). It protects the heart from mechanical
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Q. Explain the factors which make it difficult to amend the US Constitution (15 marks) To amend the US Constitution‚ a bill has to go through a two-stage process: proposal and ratification. The proposal stage has to have two thirds majority in both the House of Representatives and the Senate. Every successful amendment has started this way and even the failed ones. A proposal can also be made by a Constitutional convention‚ which is a one-off body which is put together for a specific purpose‚ and
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created a simple electrical circuit with a battery‚ wires‚ and a light bulb. Which of the following is true about this circuit? (Choose two answers) B. The battery’s positive lead pulls current toward that lead. C. The circuit creates a direct current 2. A PC NIC and a switch port create one electrical circuit to use when sending data. The sender creates a (maximum) 1-volt electrical signal with a frequency of 1000 hertz. Which of the following facts are also true? (Choose two answers) B. The phase
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The heart is the organ that helps supply blood and oxygen to all parts of the body. It is divided by a partition or septum into two halves‚ and the halves are in turn divided into four chambers. The heart is situated within the chest cavity and surrounded by a fluid filled sac called the pericardium. This amazing muscle produces electrical impulses that cause the heart to contract‚ pumping blood throughout the body. The heart and the circulatory system together form the cardiovascular system. Heart
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In the excerpt from “The Plagiarism Plague” by Raymond A. Schroth‚ the writer criticizes the behavior of cheating and plagiarism are caused by culture. The author shows how plagiarism is a moral rather than ethical problem. By using the example of a writer who collects works from others and put them together to publish a book of his own‚ the author claims the writer cheats “his own character” in return for money. In addition‚ the author explains how different culture has an impact on plagiarism.
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science fiction novel or a video game. Yet‚ that is what some researchers at NASA did a few years ago. Atmospheric physicists Paul Newman and Luke Oman built a simulation of the Earth’s atmosphere and then proceeded to strip away our protective ozone layer. Their computer model reproduced the chemistry and circulation of the air; natural variations in temperatures and winds; and minor changes in the energy received from the sun. Newman and Oman then added ozone-destroying chemicals to the atmosphere
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My Heart Three-Personed God Brooke Estes Liberty University Thesis Statement The poem‚ “Batter my heart‚ three-personed God” written by John Donne carries a powerful message conveying the writer’s awareness of his need for God‚ while expressing humility and reverence knowing that God’s truth is all-powerful and can set him free. Outline 1. Awareness 2. Reverence 3. Humility Poetry Essay – Batter My Heart Three-Personed God The poem “Batter My Heart‚ Three-personed
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The allied forces had successful tactics and execution in the events that shaped D-Day. They defeated the forces of Hitler and his Nazi regime and gained control of the city of Normandy which was important in turning the tides of the war‚ but this victory came with a great price as the German resistance was more than what the allies expected from the pill boxes to the machine gunners and mortar fire at the top of the hill. But the tactics and strategies of the orchestrators proved victorious over
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The human heart is slightly bigger than the size of ones fist. It is situated at a very safe place which is between the cage bones‚ i.e.‚ in the center of the chest. Usually it is slightly on the left side of the chest but in rare cases‚ it can be found on the right side. Heart is responsible for the blood flow to every single part of the body by constant contraction and relaxation of cardiac muscles. This is the reason why we hear rhythmic beats all the time. Heart pumps the pure blood to the different
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The ozone layer is a layer in Earth’s atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 97–99% of the Sun’s high frequency ultraviolet light‚ which is potentially damaging to the life forms on Earth.[1] It is mainly located in the lower portion of the stratosphere The ozone layer was discovered in 1913 by the French physicists Charles Fabry and Henri Buisson The photochemical mechanisms that give rise to the ozone layer were discovered by the British physicist
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