Blood pressure is the measure of the pressure against the walls of the arteries. There are two forces that form blood pressure. One of the forces is created when the heart pumps blood into the arteries through the circulatory system. The other force is due to the arteries as they resist the flow of blood. Blood pressure is always stated in two numbers‚ systolic pressure and diastolic pressure. The higher number is systolic pressure which represents the pressure while heart contracts to pump the blood
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FORMATION OF BLOOD CLOTS Definition • A blood clot is a mass of blood cells and blood components that form to stop the bleeding that occurs when a blood vessel is injured. When a blood vessel is broken‚ platelets in the blood become sticky and clump together at the site of the injury. They begin to form a mass to stop the flow of blood. Description • Clotting is the body’s normal response to a bleeding injury. It is a necessary function to prevent a person from losing too much blood. Most
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The Saving Power of Blood Main Idea: To persuade people to donate blood. Introduction Attention getters Imagine: Your father has a massive heart attack and has to have open heart surgery. Your best friend is in a car accident and loses a lot of blood. Your young cousin is a hemophiliac. -Like everyone else in that situation you would expect the hospital to have enough blood to supply the large demand. -Sadly however sometimes the hospitals cannot keep up
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has lost substantial amount of blood‚ and quickly needs transfusions. There is a way we all can help‚ and this is by taking the time and making the effort to donate blood. We all live busy lives; we all have much to do; but‚ if we are lucky enough to have healthy blood‚ we have a moral responsibility to share it with others who may need it in a health crisis. This moral responsibility arises from the fact that we‚ as human beings‚ need to care for one another and blood donation is a crucial. Now‚ 38%
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Blood Donation There is a crisis. The crisis is a shortage of blood. The world simply needs more blood donors. There’s no substitute for human blood. Human blood is vital for delivering oxygen and nutrients‚ removing waste‚ healing‚ and fighting infection. A person’s blood can‚ however‚ be shared with others. Every day‚ thousands of Americans in need of lifesaving blood‚ including trauma victims and surgery patients‚ rely on the efforts of volunteer blood donors. We need a steady flow of blood
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following statements is true? A. Blood is an organ B. Blood is a connective tissue X C. Blood is composed of living cells only D. None of the above 2. Which of the following would be considered a normal hematocrit? A. 45% X B. 35% C. 85% D. 10% 3. Which of the following cells does not contain a nucleus? A. Monocytes B. Lymphocytes C. Erthyrocytes X D. All of the above 4. Which of the following is a function of blood? A. Distribution of gases‚ wastes
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want to talk to you about the importance of donating blood. Some of you may know a friend or even a family member who has received blood at some time. I for one have received blood and I often wonder who took the time to donate it. According to the Journal of American Medical Association‚ it is noted that just 1 pint of blood can save three lives. Why You Should Give Giving blood does not just benefit recipients. Regardless of age‚ donating blood offers many benefits for donors. It lets you: time-consuming
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TASK 3 COMPONENTS OF BLOOD AND TRANSPORT OF OXYGEN Blood components are red cells‚ white cells‚ platelets and plasma. These can be put to different uses. RED BLOOD CELLS Red blood cell also known as erythrocytes make up 45% of blood volume lacks nucleus and contains the oxygen-carrying protein haemoglobin‚ which is a pigment that gives whole blood its red colour. Erythrocytes are produced inside of red bone marrow. Its main function is to distribute oxygen to body tissue‚ and carry waste
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The body attempts to maintain homeostasis of a resting blood pressure through negative feedback. When an individual is at rest‚ this results in a decreased demand on their bodies respiratory and cardiovascular system (Martini‚ Ober‚ & Nath‚ 2015). Therefore‚ the individual’s blood pressure is maintained by central regulation. Central regulation consists of the cardiovascular system‚ assistance with the neural and endocrine system via the release of hormone regulators. This form of regulation incorporates
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Norway. The sergeant’s telling of the story is in itself heroic‚ because his loss of blood has made him weak. Thus his blood and his heroism seem to enhance the picture of Macbeth as a hero. As Lady Macbeth plans to kill King Duncan‚ she calls upon the spirits of murder to "make thick my blood; stop up the access and passage to remorse." Thin blood was considered wholesome‚ and it was thought that poison made blood thick. Lady Macbeth wants to poison her own soul‚ so that she can kill without remorse
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