ch20 - Exam Name_ MULTIPLE CHOICE. Choose the one...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Blood returning to the heart from the systemic circuit first enters the A) left atrium. B) conus arteriosus. C) left ventricle. D) right ventricle. E) right atrium. 1) 2) Blood returning to the heart from the pulmonary circuit first enters the A) left ventricle. B) conus arteriosus. C) right ventricle. D) right atrium. E) left atrium. 2) 3) The earlike extension of the atrium is the A) ventricle. B) auricle. C) coronary sinus. D) coronary sulcus. E) atricle. 3) 4) The coronary sulcus is a groove that A) marks the border between the atria and ventricles. B) marks the boundary line between the right and left atria. C) marks the boundary line between the right and left ventricles. D) separates the atrioventricular valves from the atria. E) separates the coronary arteries from the coronary veins. 4) 5) In the middle of the thoracic cavity is a region occupied by the heart, great vessels, thymus esophagus, and trachea called the A) pericardial space. B) pleural space. C) ventral cavity. D) cardiac notch. E) mediastinum. 5) 6) The cusps (leaflets) of atrioventricular valves attach directly to A) interatrial septa. B) trabeculae carneae. C) coronary sulci. D) papillary muscles. E) chordae tendineae. 6) 1
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7) Contractions of the papillary muscles A) close the semilunar valves. B) close the atrioventricular valves. C) eject blood from the atria into the ventricles. D) eject blood from the ventricles. E) prevent the atrioventricular valves from reversing into the atria. 7) 8) The visceral pericardium is the same as the A) endocardium. B) mediastinum. C) parietal pericardium. D) epicardium. E) myocardium. 8) 9) Most of the middle layer in the heart wall is composed of A) fibrocytes. B) smooth muscle cells. C) chondrocytes. D) epitheliocytes. E) cardiac myocytes. 9) 10) The right ventricle pumps blood to the A) aorta. B) right atrium. C) left atrium. D) left ventricle. E) right and left lungs. 10) 11) The left ventricle pumps blood to the A) lungs. B) aorta. C) right ventricle. D) right atrium. E) pulmonary circuit. 11) 12) The right atrium receives blood from the A) superior vena cava. B) inferior vena cava. C) coronary sinus. D) A, B, and C E) B and C only 12) 13) Blood flowing into the heart from the venae cavae flows next through the ________ valve. A) tricuspid B) aortic semilunar C) mitral D) pulmonary semilunar E) bicuspid 13) 2
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14) As blood leaves the right ventricle it passes through the ________ and then into the pulmonary trunk. A) pulmonary veins B) inferior vena cava C) aorta D) superior vena cava E) conus arteriosus 14) 15) The pulmonary semilunar valve prevents backward flow into the A) right ventricle. B) pulmonary veins.
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This note was uploaded on 09/21/2011 for the course BIOL 2401 taught by Professor Rameriz during the Spring '11 term at University of Texas at Dallas, Richardson.

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ch20 - Exam Name_ MULTIPLE CHOICE. Choose the one...

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