OBJECTIVES Cardiology

OBJECTIVES Cardiology - SOUTH FLORIDA COMMUNITY COLLEGE...

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SOUTH FLORIDA COMMUNITY COLLEGE ASSOCIATE DEGREE NURSING PROGRAM MEDICAL SURGICAL II CARDIOLOGY OBJECTIVES: Upon completion of the cardiology unit, the student should be able to: 1. Describe the basic structure and function of the heart. a. Structure i. Composed of three layers: 1. Endocardium- thin inner lining 2. Myocardium – layer of muscle 3. Epicardium – fibrous outer layer ii. Surrounded by: 1. Pericardium – fibroserous sac. Its inner (visceral) layer is in contact with the epicardium and the outer (parietal) layer is in contact with the mediastinum. a. Pericardial fluid – (10-30 ml) lubricates the space between the pericardial layers (pericardial space) and prevents friction between the surfaces as the heart contracts. iii. The heart is divided vertically by the septum. iv. The thickness of the left ventricle is necessary to generate the force needed to pump the blood into the systemic circulation. The function of the heart is to pump blood to the lungs and for the oxygenated blood to be pumped throughout our body. 2. List and describe the function of the four cardiac chambers. - Right atrium sends blood to right ventricle - Right ventricle sends blood to lungs - Left atrium sends blood to left ventricle - Left ventricle sends blood to body 3.List the three layers of cardiac tissue. v. Composed of three layers: 1. Endocardium- thin inner lining 2. Myocardium – layer of muscle 3. Epicardium – fibrous outer layer 4.Differentiate between the parietal and the visceral pericardium. - Pericardium – fibroserous sac. Its inner (visceral) layer is in contact with the epicardium and the outer (parietal) layer is in contact with the mediastinum. ADNII/MED-SURG II/Objectives Cardiology 2007
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5.Diagram normal blood flow through the heart chambers, valves, and greater blood vessels. 4. Inferior and superior vena cava 5. Right atrium 6. Tricuspid valve 7. Right ventricle 8. Pulmonic valve 9. Pulmonary artery 10. Lungs 11. Pulmonary veins 12. Left atrium 13. Mitral valve 14. Left ventricle 15. Aortic valve 16. Aorta 6. List and locate the semi-lunar and atrioventricular valves. - The semilunar valves are the valves that separate the right ventricle from the lungs (pulmonic valve) and the left ventricle from the aorta (aortic valve). The atrioventriclal valves are the tricuspid valve, between the right atrium and ventricle, and the mitral valve, between the left atrium and ventricle. 7. Locate and explain the foramen ovale and ductus arteriosus of fetal circulation. - Blood is shunted to the secending aorta via the ductus arteriosus (deoxygenated, me thinks). - Because of the higher pressure of blood entering the right atrium, it is directed posteriourly in a straight pathway across the right atrium and through the foramen ovale to the left atrium. 8.
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OBJECTIVES Cardiology - SOUTH FLORIDA COMMUNITY COLLEGE...

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