frequency of the pulse with the patient’s health status. Hippocrates (460-355BC) and his pupils also drew accurate conclusions regarding the nature of blood flow. The goal of this review is to examine the events that led to discovery of blood circulation. The Ancient Greeks‚ including Hippocrates and Galen viewed the cardiovascular system as comprising two distinct networks of arteries and veins. Galen claimed that the liver produced blood that was then distributed to the body in a centrifugal manner
Premium Heart Blood
left common carotid artery 11. left subclavian artery 12. pulmonary trunk 13. right pulmonary artery 14. left pulmonary artery 15. ligamentum arteriosum 16. right pulmonary veins 17. left pulmonary veins 18. right coronary artery 19. anterior cardiac vein t s w x v 20. left coronary artery 21. circumflex artery 22. anterior interventricular artery 23. apex of heart 24. great cardiac vein d e f g h s t p q r l i u j v w k m e c x p o f q h i 201 2. What is the function of
Premium Heart
left subclavian artery t i u j v w k 12. pulmonary trunk x c 13. right pulmonary artery p 14. left pulmonary artery o 15. ligamentum arteriosum t 20. left coronary artery f 16. right pulmonary veins s 21. circumflex artery q 17. left pulmonary veins w 22. anterior interventricular artery h 18. right coronary artery x 23. apex of heart i 19. anterior cardiac vein v 24. great cardiac vein 190 Copyright © 2011 Pearson Education‚ Inc. M30_MARI0000_00_SE_CH30.qxd 3/29/11
Premium Heart
Chapter 23 - The Heart 331 The Heart - Key 1 2 3 What is the name of the central region of the thorax? The central region of the thorax is the mediastinum. About how much of the heart is to the left of the mid-sternal line? Two-thirds of the heart is to the left. Where is the location of the apex of the heart? The apex of the heart is located to the left at the fifth intercostal space. Figure 23.2 11 In reference to Figure 23.2‚ identify #1 - #3. 3 Epicardium 1 Pericardium 2 Pericardial
Premium Heart
Physiology The heart is the pump responsible for maintaining adequate circulation of oxygenated blood around the vascular network of the body. It is a four-chamber pump‚ with the right side receiving deoxygenated blood from the body at low presure and pumping it to the lungs (the pulmonary circulation) and the left side receiving oxygenated blood from the lungs and pumping it at high pressure around the body (the systemic circulation). The myocardium (cardiac muscle) is a specialised form of muscle
Premium Heart Blood Circulatory system
Circulatory System Composition of Blood Red Cells -These are tiny‚ disc-like cells which do not have nuclei. -In their cytoplasm is the haemoglobin‚ a protein combined with iron. Haemoglobin combines with oxygen in places where there is a high concentration of oxygen‚ to form oxyhaemoglobin. -Oxyhagemoglobin is unstable compound. It breaks down and releases its oxygen in places where oxygen contentration is low. White Cells -They undergo a process of matruation and development in the
Premium Heart Blood
echocardiogram. FALSE 7. AIDS is a direct result of an HIV infection. TRUE 8. The bipolar leads of an EKG record the electrical activity in the chest. FALSE 9. The left ventricle is the upper chamber of the heart. FALSE 10. After pulmonary circulation and the exchange of gases‚ oxygenated blood returns to the heart via the pulmonary vein 11. What class of drugs is used to treat irregular heart rhythm? antiarrhythmic 12. Removal of a clot is termed thrombectomy. 13. Which of the following is
Premium Blood Heart Artery
The Cardiovascular System: The Heart- Chapter 18 Heart Anatomy Size‚ Location‚ and Orientation * Approximately the size of a fist * Location * In the mediastinum between second rib and fifth intercostal space * On the superior surface of diaphragm * Two-thirds to the left of the midsternal line; balance projects to the right * Anterior to the vertebral column‚ posterior to the sternum Coverings of the Heart * Enclosed in pericardium‚ a double-walled sac
Premium Heart
“An abnormal clinical condition involving impaired cardiac pumping that results in pathophysiologic changes in vasoconstriction and fluid retention” (Lewis‚ Heitkemper‚ Dirksen‚ O’Brien‚ Bucher‚ 2007‚ p. 821). Risk factors: Increasing age and coronary artery disease are the two main risk factors for heart failure. Heart failure may also develop by other contributing risk factors‚ such as cigarette smoking‚ diabetes‚ high cholesterol‚ obesity‚ and hypertension (Lewis‚ et al‚ 2007‚ p. 821). Other
Premium Heart Blood Artery
have to push the blood to our head and feet continuously. Circulation is the blood flow around our bodies. The heart connects the two major portions of the circulation’s continuous circuit‚ the systemic circulation and the pulmonary circulation. The blood vessels in the pulmonary circulation carry the blood through the lungs where the gasses oxygen and carbon dioxide are exchanged. While the blood vessels in the systemic circulation carry the blood throughout the rest of our body (Martini & Bartholomew
Premium Myocardial infarction Atherosclerosis Heart