The Circulatory System Rajat Goyal and Michelle Fater Table of Contents Table of Contents Human Organ Systems The Circulatory System Open Circulatory System Closed Circulatory System Functions of the System Heart Pulse Chambers of the Heart Arteries Veins Blood Oxygenation of Blood Red Blood Cells White Blood Cells Antigens Plasma Cells and Platelets Circulatory Systems of Other Organisms Mammals and Birds Amphibians and Reptiles Fish First Aid Glossary About the Authors Illustration Credits 1
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are detected by the baroreceptors. Adrenaline and noradrenaline cause similar responses to the cardiovascular system. They have a sympathetic effect, causing an increase in the mean arterial pressure, pulse pressure and heart rate. Conversely, acetylcholine has a parasympathetic effect, the heart rate and blood pressure drops. The aim of the experiment was to see the changes in the cardiovascular parameters of mean arterial pressure, pulse pressure and heart rate, when different chemicals, such
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body regulate blood pressure? * The body has certain mechanisms that help it keep a stable blood pressure or change it when needed. It contains sensors that monitor blood pressure within the walls of arteries that send input signals to the cardiovascular center which sends output signals to the heart and blood vessels to adjust accordingly. 2. What were the specific effects of the Lasix, hot water, and alcohol on the couple’s blood pressure? * Alcohol and Lasix medication should not
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Introduction: In this activity each group has a member record their electrical activity of the heart with electrodes. The electrodes will be put on three different locations on the body, the right anterior forearm at the wrist, and on the medial surface of each leg, superior to the ankle. Since the electrodes will not be placed directly over the heart artifacts can result from the recording of unwanted skeletal activity. Therefore the member has to be still, cannot laugh or talk, and when in the
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The Mammalian Circulatory and Gas Exchange Systems Radwa Abdallah Professor Yan Xu Fundamentals of Biology II Lab February 20, 2014 Objectives The objectives of the Circulatory System laboratory experiment included observing and learning to identify the structural characteristics, mostly arteries and veins, in the chest cavity of the fetal pig, which would further the understanding of the heart and lungs in most other mammals; another objective was to understand blood pressure and heart
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A venous leg ulcer is a chronic wound as it takes longer than six weeks to heal. It is caused by venous hypertension which is high blood pressure exerted in the veins of the legs which causes damage to the skin. Fluid can leak from the veins and pool under the skin causing swelling and thickening, this then leads to the skin breaking down to form an ulcer. Before a venous ulcer can be treated it is important to rule out peripheral arterial disease being the cause of the ulcer. Symptoms
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Place the statements/comments in the correct order when undertaking an A-E Assessment on a patientThink about the “task” or “observation” that is being undertaken within the following statement/comment , and place it in the correct order(Some Trusts may want to undertake F and G, so there are statements relevant to these ) | Gold Standard | Goals | Set time parameters for review | Temperature | Pain Assessment | Level of Consciousness | Heart Rate | Respiratory Rate | Patient airway | Obstructed
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Cardiovascular System The cardiovascular system transports oxygen around the body to the working muscles. It also helps to transport waste products such as CO2 that is caused by aerobic respiration so that it can be disposed. Your heart is a fist sized muscle that is located on the left side of your chest and is an involuntary muscle and an adult heart approximately weighs 255grams. The heart is separated by a septum. The left side of the heart is thicker than the right because it has to pump oxygenated
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Cardiovascular System The cardiovascular system includes the heart, the blood and the blood vesicles. The heart is a muscular organ that pumps blood around the body by using blood vessels. The blood vessels consist of the arteries, veins and capillaries. The blood carries dissolved oxygen to the body cells and at the same time, it removes the waste products made by respiration. Blood also distributes heat throughout the body, along hormones, nutrients, salts, enzymes and urea. The heart is a double
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Effects of Caffeine on a Person’s Cardiovascular System INTRODUCTION Caffeine is a stimulant that makes a person’s heart beat faster (Nunley 2013). This effect of caffeine is usually seen as a negative one and that it hearts your cardiovascular health overall. A lower heart rate, both resting and post exercise, is said to be better if the rate is lower because it puts you at a lower risk of having a stroke or heart disease (Boyles 2002). Having a lower rate is preferred because it means that
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