The Circulatory System The circulatory system is the system of the human body that is responsible for delivering oxygen‚ nutrients‚ and disease-fighting cells to the body’s organs and tissues. Parts of the circulatory system include the cardiovascular system‚ which consists of the heart‚ lungs‚ blood vessels‚ and blood‚ as well as the lymphatic system‚ made up of the lymph vessels‚ nodes‚ and lymph itself. The cardiovascular system brings oxygen and glucose to the body’s tissues in the blood and
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Intestinal ischemia following aortic reconstruction is a severe complication with 1% mortality. Although the manifestations of colon ischemia become obvious in the early postoperative course. In the case presented here‚ sigmoid rupture and small and large intestine communication was revealed three months following repair of the abdominal aorta. A 71-year old man‚ following open repair of an abdominal aortic aneurysm went home on the 5th postoperative day. Three months later was admitted to the
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the heart are not accurate and happen to interchanged. What additional heart anomaly is the cardiologist likely to find on echocardiography? Coarctation of aorta Ventricular septal defect Overriding aorta Atrial septal defect Pulmonary valve stenosis Explanation: Correct Answer (B): The baby boy in this case is noted to have transposition of his great vessels (TGA). Which means that the aorta originates from the right ventricle and pulmonary trunk from the left ventricle. In
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aneurysm is a blood-filled balloon-like bulge in the wall of a blood vessel. There are two main types of aneurysms‚ aortic Aneurysms and cerebral Aneurysms. The main difference between an aortic aneurysm and a cerebral Aneurysm is the location. An aortic aneurysm occurs in the aorta. A cerebral aneurysm occurs in a blood vessel in the brain. There are several factors that can cause an aortic aneurysm. Some of the main causes include atherosclerosis‚ smoking‚ hypertension‚ vacuities‚ cocaine use‚ genetic
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caused by this maneuver. Studies showed that the aortic valve of the heart could rupture because of the Heimlich Maneuver (Chapman‚ Menapace‚ Howell‚ 1983). Also‚ other complications have been results of the well known abdominal thrust. In addition to the abdominal thrust‚ Dr. Heimlich contributed to the medical field by inventing the Heimlich‚ or flutter valve. The death of one of the Chinese soldiers who was shot on the chest inspired him. This valve saved thousands of lives by draining blood and
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LAB PRACTICAL 2 * Skin * Comprised of all 4 main tissue types * Epithelial * Connective * Muscular * Nervous * Part of the integumentary system * Function: * Protection * Body temperature regulation * Vitamin D synthesis * Sensation to touch‚ pressure‚ pain and temperature * 2 main regions: * epidermis * 5 strata * corneum
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heart contracts‚ blood is pumped through the body with the assistance of four heart valves. Blood that is low in oxygen flows back to the heart after circulating through the body. The blood enters through veins and enters the right atrium. This chamber empties blood through the tricuspid valve into the right ventricle. The right ventricle continues to pump the blood under low pressure through the pulmonary valve into the pulmonary artery. The blood is now directed to the lungs where it gets fresh
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Chapter 1 Cardiovascular Disorders I. Normal cardiac anatomy‚ physiology‚ and function A. Cardiac and coronary artery anatomy (see Figure 1-1) The left anterior descending artery is the most common site of coronary artery occlusion. B. Cardiac cycle (see Figure 1-2) In 10% of patients‚ the posterior descending artery derives from the left coronary artery. C. Cardiac output (CO) 1. Heart rate (HR) a. Number of cardiac contractions per unit time; commonly expressed as beats per minute (bpm)
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and the lower parts of the body to the heart. This large veins lead into the right atrium where the pumping heart forces the red blood cells through the tricuspid valve into the right ventricle. The valve stops blood from flowing backwards into the right atrium once it’s in the right ventricle they are then pumped through the pulmonary valve into the pulmonary artery and on to the lungs. The arteries carry blood away from the heart (always oxygenated apart from the pulmonary artery which goes from
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stimulates the papillary muscles of the right ventricle (bracing the chordate tendinaea) before the ventricles contract to prevent backflow into the atria. The contraction of the ventricles closes the AV valves (producing the S1‚ or “lubb”‚sound) and forces blood out past the semilunar valves and into the pulmonary circuit (from the right ventricle) via the pulmonary trunk‚ and into the systemic circuit (from the left ventricle) via the aorta‚ both ending back into the atria via the pulmonary veins
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