Blood Composition. The following are components of blood - red blood cells‚ white blood cells‚ platelets and plasma (the liquid component). Red blood cells are the pinky white circles‚ the white blood cells are the big red blobs. Red blood cells do not have a nucleus because they do not divide and multiply Red blood cells are bi-concave‚ they are donut shaped. Red blood cells contain a pigment called haemoglobin which can react with oxygen to form the unstable compound‚ oxy-haemoglobin. Hb+4O2
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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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Julianna Triano Block 4 November 19‚ 2010 Blood Donation Imagine a happy healthy teen. He does well in school and is easy to get along with. Imagine he is diagnosed with leukemia and requires daily platelet and blood transfusions just to stay alive. Now‚ imagine he has a rare blood type that requires him to be moved to a larger hospital for treatment. This is just another thing for him and his family to worry about. Similar stories happen every day in the United States. It is estimated that
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In Cold Blood Essay (Question 3) In the novel In Cold Blood‚ Truman Capote portrays Perry Smith as both a victim and a hero in order to make the reader connect more sympathetically with Smith‚ thus making him the protagonist of the text. Protagonists are generally the character with whom readers sense the author has the most sympathy. Throughout the text Smith is constantly portrayed as the victim. In the first introduction regarding Smith describing his physical appearance prior to the murders
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MANUAL BLOOD PRESSURE ASSESSMENT TECHNIQUE 2 Abstract: Taking a blood pressure reading is very important in the medical field. It is a way to detect cardiovascular health and treatment effectiveness. Blood pressure readings are one of the most popular tests being done in the healthcare setting. Recording a blood pressure consists of a number of steps‚ which were recently revised by the American Heart Association in the past few years. Because of the endless amount of misled readings and
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and my blood came into view. I felt horrified when the doctor squeezed my finger and I saw my own blood smear onto my skin. Immediately‚ I sensed that I would never outgrow my fear of blood. My imagination overpowered my reasoning at such a young age; my first experience with a piercing needle made me think that I could never handle blood and would always squeamishly tremble at its sight. Although I have always wanted to help those in need‚ I repeatedly rejected the idea to ever donate blood during
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Blood Cells Leukocytes (WBC’s) Leukocytes also known as white blood cells (WBCs) are cells which play a defensive roll in the body against injury and infection. They migrate towards tissues where they are needed and become functional performing various activities. WBCs can be divided into 2 groups: Polymorphonuclear granulocytes and mononuclear agranulocytes. Both types are spherical while suspended in blood plasma but when they invade tissues after leaving the blood vessels they become amoeboid
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Blood a journey through the body. You might find yourself asking‚ what does blood have to do with digestion‚ respiration and circulation? Hopefully‚ after the presentation all of your questions will be answered. When a person thinks of digestion they usually think about what happens in the stomach. A lot has happened to digest the food way before it gets to the stomach. It starts in the mouth or oral cavity. It is a process called mechanical digestion. First‚ Mastication begins. Mastication
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Drawing blood is not as challenging as you may think. When I started my job at the hospital‚ I had no previous experience in drawing blood. They put me through a training that lasted about five days‚ eight hours per day. There are many simple steps to drawing someones blood. The three biggest steps are waiting for a requisition to print off‚ preparing all of your equipment‚ and finally draw the blood. Step one is to get the requisition and take it into the patients room‚ you use this to verify
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