The cardiovascular system is a closed organ system that is found within humans and other vertebrates. The heart consists of the right and left ventricle‚ right and left atrium‚ aorta‚ capillaries‚ pulmonary arteries and veins and the anterior and posterior vena cava. All of the following structures maintain the heart’s beating cycle and the circulation of blood throughout the body. Three main types of blood vessels: Arteries - Thick-walled tubes in which blood is brought from the heart to various
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CHAPTER 1 Man’s Origin--Where Did I come from? Whenever we are seeking to find out the ORIGIN of something‚ we are asking the question‚ "Where did it begin?" "How did it all begin?" "How did it originate?" "Where did it come from?" In this chapter we are concerned about the origin of man. How did man begin? How did the human race get started? Who are my ancestors? One of the most important questions facing every man‚ woman‚ boy and girl is the question WHERE DID HUMANS COME FROM? How did
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Cardiovascular Diseases Cardiovascular disease is defined as a disease that affects any area of the cardiovascular system‚ including the heart and blood vessels‚ and covers a range of diseases such as arteriosclerosis‚ atherosclerosis and coronary heart disease. Diet plays a vital part in the prevention and control of these diseases however other manageable factors such as smoking and physical inactivity also contribute to the diseases if not controlled correctly. However corrective action or
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We as Americans love food and slowly but surely we have ended up with an abundant amount of food options as well as huge waistlines. But we have to argue‚ who is to blame for this? Should we be held responsible for our bodies and what we decide to consume or is the food industry responsible for luring us in? This‚ as well as many biological and environmental factors can contribute to the rise of weight problems and obesity. R.A Ames‚ author of "Fast Food Isn’t to Blame"‚ argues that weight difficulties
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Some people say: we are what we eat. It’s a great saying. I absolutely agree with this.You may have a fit body or quite overweight. Your appearance showed us what you ate. Eating too much or too little are both not good. We should keep a balanced diet. That’s a key to be in good health and get success. For example‚ many people have meals too late because they have to work overtime‚ which leads to stomachache. Or a hungry man is eating too much to stop his hunger so what’s next. The answer is that
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At some point in your life‚ someone probably said to you: “You are what you eat.” Well‚ that’s true. If we eat healthy‚ we will more likely be healthy. Our bodies need healthy‚ clean foods to grow strong‚ learn‚and be active. Our kids especially need these things because their bodies are changing‚ growing and learning so much every day. Eating healthy from the time of infancy will follow our children through adolescence into adulthood. Proper nutrition will not only help our kids avoid illness
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the Asian country has the biggest IT export share world-wide‚ Earth’s third largest trader‚ second largest economy in PP GDP. Therefore‚ a would-be failure of their market will affect the global economy in a dramatic way. What would be the exact consequences from this downfall‚ we are going to evaluate using the PEST model in the following paragraphs. Political aspect – On the political stage everything
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fragile existence‚ we should hate and destroy one another. There is world enough for all to seek their happiness in their own way. 5) We have discovered that every child who learns‚ and every man who finds work‚ and every sick body that is made whole – like a candle added to an altar – brightens the hope of all the faithful. 6) It is the excitement of becoming – always becoming‚ trying‚ probing‚ resting‚ and trying again but always gaining. 7) If we fail now‚ then we will have forgotten
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Ginkgo biloba affects the cardiovascular system and the central nervous system. Elasticity of the blood vessels‚ from the largest arteries to the smallest capillaries‚ improves the circulation in the limbs and brain. Similarly‚ acetylsalicylic acid acts by reducing blood viscosity and by reducing the risk of blood clots. It also has antioxidant properties. It removes free radicals and protects healthy blood cells. Some researchers claim that it supports the nervous system. increasing the supply of
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Sophocles uses a mixture of both visual and emotional imagery to create the morally questioning‚ Greek tragedy Oedipus Tyrannos’. He presents the audience with an intense drama‚ which addresses the reality and importance of the gods that the Greeks fervently believed in. The play also forces the audience to ask themselves if there is such a concept as fate. From the very beginning of Oedipus‚ it is made clear "that his destiny be one of fate and worse". The irony is that Oedipus unknowingly
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