Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps blood. The heart pumps blood into the arteries (blood vessels)‚ which carry the blood throughout the body. Blood pressure is one of the vital signs. High blood pressure (hypertension) is a serious condition that can lead to various health problems (coronary heart disease‚ heart failure‚ stroke).It is dangerous because it makes the heart work harder to pump blood to the body and contributes to hardening
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W ashington · Seattle W A 98195-3055 www.hallway.org Science‚ Discrimination‚ and the Blood Supply: San José State University’s Blood Drive Ban San José State University Suspends Campus Blood Drives On January 29‚ 2008‚ Don W. Kassing‚ President of San José State University (SJSU)‚ announced that he was suspending indefinitely all blood drives taking place on the SJSU campus‚ plus any drives taking place elsewhere that were arranged by employees representing the University or by official
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GOT BLOOD? The roaring room quieted just in time to hear the last few words of the morning announcements “give blood and save a life”. I didn’t know it yet‚ but those words were going to change my life. Over the next couple of days the school worked hard to promote the upcoming blood drive by putting up many posters and constantly reminding us over the loudspeaker every possible chance they had. I hadn’t given the blood drive much thought initially‚ but about a week prior to the designated date
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There are twenty-four different blood types known. The most common blood types known are A‚ B‚ AB‚ and O. The knowledge of blood types has saved so many people’s lives. Blood types are also called blood groups. Blood types are inherited‚ and they never change. Everybody has a blood type. All human blood looks alike‚ but once tested it shows the differences between the blood. The letters A‚ B‚ AB‚ and O stand for two antigens labeled A and B. Antigens are substances targeted by the immune system
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about the circulatory system and the blood that runs through it‚ the use of blood transfusions have steadily declined. As a result transfusion alternatives have steadily increased. Through out this progression of knowledge such debates have come up‚ such as religious and ethical questions regarding transfusions of blood and blood fractions. There are also arguments regarding whose choice it should be to refuse a medical treatment‚ much less the transfusion of blood. At times some doctors will not go
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seconds‚ someone is in desperate need of blood. So I’ll like too speak something regarding blood donation… We all need blood to survive‚ but for sick children‚ accident victims and cancer patients just to name a few – a shortage of donated blood means the difference between life and death. Today we have bio technologically engineered human organ that can be transplanted at time of need. But there is no substitute for blood. Blood donors are the only source of blood for these sick children‚ accident victims
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Hormones can react to increase blood pressure when it becomes low‚ the sympathetic division of the autonomic nervous system uses several ways to temporarily increase blood pressure when it has dropped for example during the fight or flight response. During the response‚ the sympathetic division is needed to stimulate the adrenal glands to release the hormones epinephrine and norepineprine which stimulate the heart to beat faster and for blood to flow more forcefully‚ this effect makes most of the
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remember being covered was blood donation. Blood donation and blood collection is very important in order to keep the blood banks full for when blood is needed and so knowing about blood donation‚ and how blood banks collect and distribute blood is very important. If you are assigned a paper on the topic though‚ there is a variety of news and information on blood donation. While the essay you may be asked to write may include information on blood collection or blood drives local to where you live
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contains blood. It is the life force that allows the body to function properly. It is a specialized fluid that is pumped by the heart and circulated through the body via a system of arteries and veins. It is an essential component of the body and without it we would not be able to survive. This paper discusses the anatomy and physiology of blood in a brief review. Anatomy and Physiology of Blood The blood is made up of four main components. These are plasma‚ red blood cells‚ white blood cells
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The Blood Circulatory System The Circulatory system is a system in the bodies of all organisms that moves the nutrients that are needed as well as gases and wastes to and from cells and helps fight unwanted bacteria and other diseases. It also helps alleviate the body temperature to maintain homeostasis‚ which is the property of either an open system or a closed system in a living organism. It brings the body’s cells what they need in order to survive – oxygen and nutrients. The center of the circulatory
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