NHA CET Exam Study Guide Questions and Answers 100% Correct .

Heart - ANSWER-Hollow muscular organ located in the thoracic cavity between the lungs just behind the sternum Name and describe the innermost layer of the heart - ANSWER-Endocardium Inner lining that folds back on itself to form four valves Provides conduction system Name and describe the outermost layer of the heart - ANSWER-Epicardium AKA the visceral layer of pericardium Name and describe the middle layer of the heart - ANSWER-Myocardium made of striated muscle fiber w/ intercalated discs provides for pumping ability of heart How any layers of the heart are there? - ANSWER-3 layers What is the name of the sac that encloses the heart? - ANSWER-Pericardium How many chambers in the heart? - ANSWER-four Chamber that receives deoxygenated blood returning from superior vena cava and inferior vena cava which drain the upper and lower body respectively. Pumps it through the tricuspid valve. - ANSWER-Right Atrium Chamber that pumps deoxygenated blood in through the pulmonary arteries and into the lungs, where it is oxygenated, and then through pulmonary veins to the next chamber. - ANSWER-Right ventricle Pulmonary Arteries - ANSWER-The only arteries in the body that carry deoxygenated