1) Make a graph of resting heart rates from Activity 1. Provide a physiological explanation for fluctuations in resting heart rate over time. Discuss a couple of extrinsic factors that influence the autonomic nervous regulation of resting heart rate. The resting heart rate fluctuates over time because it is under control of the autonomic nervous system and the fluctuations are a result of the sympathetic and parasympathetic systems trying to balance each other out. There are many reasons
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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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CARDIOVASCULAR FITNESS Cardiovascular fitness is frequently considered the most important aspect of physical fitness because those who possess it are likely to have a lessened risk of coronary heart disease – the number one killer in our society. Cardiovascular fitness is also referred to as cardiovascular endurance‚ cardio-respiratory capacity and circulatory fitness. Regardless of the word used to describe it‚ cardiovascular fitness is complex because it requires fitness of several body systems
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Cardiovascular disease is a general name for a wide variety of diseases‚ disorders and conditions that affect the heart and sometimes the blood vessels as well. Risk factors for developing cardiovascular disease include having hypertension‚ diabetes‚ high cholesterol‚ obesity‚ and a sedentary lifestyle. Other risk factors include being of African-American ancestry‚ male‚ drinking excessive amounts of alcohol‚ having a lot of long-term stress‚ smoking and having a family history of a heart attack
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Cardiovascular Disease Information HCA 240 February 22‚ 2013 Gioia Scoppoa Cardiovascular Disease Information Cardiovascular disease refers to conditions that narrow or block blood vessels. These conditions can lead to a heart attack or stroke. According to Richard P. Lewis M.D. (Can Cardiovascular Disease be prevented)‚ “Cardiovascular disease is the common chronic illness in our society.” Coronary artery disease is a disease that supplies the muscle with blood. The blood flow can become
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NAME ________________________________________ HUMAN PHYSIOLOGY BMS 108 First Midterm – Summer 2013 DR. BARRY D. TANOWITZ 1. Put your name at the top and on your Scantron. 2. Answers for questions 1-‐ 50 will be placed on a Scantron (Green strip‚ 100 questions) – all questions 1 point each.
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The Cardiovascular System David Clarke is 30 years old‚ stands 6’ and weights 225 lbs. He commutes between Miami where he is a full time student‚ and Hialeah‚ where he works as a paramedic. He sleeps only two to four hours per night. Brian is overweight and does very little exercise. He also admits to eating mostly fatty foods. Both David’s grandmother and father have suffered heart attacks. According to new statistics‚ “despite the recent decline in mortality from coronary heart disease‚ this disease
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The Cardiovascular System The cardiovascular system consists of a heart and an enclosed system of blood vessels categories into arteries‚ capillaries and veins. The heart is a muscle about the size of the fist; its wall is made up of a muscle known as the Cardiac Muscle‚ and is located between the two lungs and lies left of the middle of the chest (cliff notes). A fibrous covering known as the pericardium which surrounds around the whole heart holds the heart in place but allows it to move as
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Equipment Calibration is defined as the act of adjusting and evaluating the precision and accuracy of measured equipment. It allows the user to get an accurate and precise reading of measurements to its actual true value. However‚ in order for the experiment to be effective is must consist of validity‚ reliability‚ and objectivity. Validity is defined as the ability of a test to measure what it claims to measure. Reliability is the consistency of test results and objectivity is defined as a test
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20 The Heart PowerPoint® Lecture Presentations prepared by Jason LaPres Lone Star College—North Harris © 2012 Pearson Education‚ Inc. An Introduction to the Cardiovascular System • Learning Outcomes • 20-1 Describe the anatomy of the heart‚ including vascular supply and pericardium structure‚ and trace the flow of blood through the heart‚ identifying the major blood vessels‚ chambers‚ and heart valves. • 20-2 Explain the events of an action potential in cardiac muscle‚ indicate the
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