L Main 3. LAD 4. Circumflex F. Cardiac cycle 1. Systole 2. Diastole G. Cardiac output and cardiac index - SV x HR. CI = CO /body surface area. 1. Preload 2. Afterload H. Cardiac pressures p. 1557 of Black and Hawks 1. R atrium 2. R ventricle 3. Pulmonary artery 4. L atrium 5. L ventricle I. Electrophysiology 1. Properties of heart a. Excitability - ability to respond - Na and K b. Automaticity (rhythmicity) - ability to initiate impulse spontaneously and repetitively without neurohormonal influence
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Chapter 18: The Cardiovascular System: The Heart Homework Questions/Objectives (1-18) Heart Anatomy 1. Describe the size‚ shape‚ location‚ and orientation of the heart in the thorax. • 250 to 350 grams about the size of a fist‚ within the mediastinum and tilts toward the left side of the body√ 2. Name the coverings of the heart. • Pericardium – doubled-walled sac that encloses the heart. • Fibrous Pericardium – superficial part of
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About 100‚000 people in the UK die each year due to smoking. Smoking-related deaths are mainly due to cancers‚ chronic obstructive pulmonary disease and heart disease. About half of all smokers die from smoking-related diseases. If you are a long-term smoker‚ on average‚ your life expectancy is about 10 years less than a non-smoker. and in the UK about 8 in 10 non-smokers live past the age of 70‚ but only about half of long-term smokers live past 70. The younger you are when you start smoking‚
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6 December 2013 Aristotle’s account of the Cardio Vascular system Aristotle’s description of phenomena in the living world‚ in particular animal anatomy and the causes of natural processes in the body‚ were far more advanced than that of his predecessors. His value of empirical research aided and ultimately enabled him to study a variety of natural phenomena. In this paper‚ I will focus on Aristotle’s account of the anatomy of the heart and its relation with a network of other organs (modernly
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deficiency of vitamin D vi) Rickets genetic disease d) Give a scientific reason for the following: i) Terrace farming prevents soil erosion. iii) Blood circulation in man is called as double blood circulation. iv) Elbow is an example of hinge joint. v) Numerous root hairs are present behind the tip of the root. e) Given below is an example of a bone and its location. Example:
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However‚ tissue donation also has a major impact on the lives of many recipients. Some examples are: donated corneas can restore vision‚ veins and arteries can restore circulation and are used in coronary artery bypass graft surgery‚ defective valves are replaced with healthy heart valves‚ bone is used for knee and hip replacement; connective tissue is used to repair joints‚ and even the skin is used for patients with severe
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Briefly describe the flow of blood throughout the body via the pulmonary and systemic circuits. Be sure to mention each of the four chambers of the heart and whether blood entering/exiting is oxygen-rich or oxygen-poor. 3 points According to Marieb and Hoehn (2019)‚ oxygen-poor blood is received from the body to right side of the heart and is pumped to the lungs to get oxygen and eliminate carbon dioxide. They state that the pulmonary circuit consists of blood vessels that carry this blood to and
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SMOKING’S IMMEDIATE EFFECTS ON THE BODY Many teenagers and adults think that there are no effects of smoking on their bodies until they reach 1 middle age. Smoking-caused lung cancer‚ other cancers‚ heart disease‚ and stroke typically do not occur until years after a person’s first cigarette. However‚ there are many serious harms from smoking that occur much sooner. In fact‚ smoking has numerous immediate health effects on the brain and on the respiratory‚ cardiovascular‚ gastrointestinal‚ immune
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b)magnetic effect c)chemical effect d)mechanical effect [1] 4. The acids produced by plants and animals are called a)inorganic acid b)mineral acid c)organic acid d)none of these [1] 5. Amoeba gets nutrients and oxygen through a process known as a)circulation b)transfusion c)transportation d)diffusion [1] 6. When an electric current flows through a wire ‚it a)cools down b)boils c)behaves like a magnet d) behaves like a safety device [1] 7. The oxygenated blood coming from the lungs enter the heart
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around us. The nervous system also operates the body’s essential functions‚ such as breathing and digestion. Multiple sclerosis Alzheimer’s disease Parkinson’s Epilepsy Stroke Required: Cardiovascular System Heart Arteries Veins Coronary circulation Pulmonary circulation The heart and the circulatory system make up your cardiovascular system. Your heart works as a pump that pushes blood to the organs‚ tissue‚ and cells of your body. Coronary artery Heart attack Abnormal heart rhythms Heart failure Congenital
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