This study source was downloaded by 100000868292051 from CourseHero com on 09 28 2023 13 17 02 GMT 05 00 https www coursehero com file 38585730 BIO 211 Practice Exam 2doc BIO 211 Practice EXAM 2 Heart Circulation Respiration 1 The left ventricular wall of the heart is thicker than the right wall in order toa pump more blood b pump blood through a smaller valve c pump blood with a greater pressure d expand the thoracic cage during diastole e push blood into the lungs 2 The P wave of a normal electrocardiogram indicates a atrial depolarization b ventricular depolarization c atrial repolarization d ventricular repolarization e tachycardia 3 Blood in the pulmonary vein enter a right atrium b left atrium c right ventricle d left ventricle e lung 4 The presence of fatty plaques in large and medium arteries best definesa congestive heart failure b hypertension c obesity d atherosclerosis e arteriosclerosis 5 Blood enters which of these vessels during ventricular systole a aorta b pulmonary artery c pulmonary vein d aorta and pulmonary artery e aorta and pulmonary vein 6 Small muscle masses attached to the chordae tendineae are the a trabeculae carneae b papillary muscles c pectinate muscles d interventricular septum 7 Which of the following is not part of the conduction system of the heart a AV node b bundle of His c AV valve d SA node 8 Blood is carried to capillaries in the myocardium by way of a the coronary sinus b fossa ovale c coronary arteries d coronary veins 9 The tricuspid valve is closed a while the ventricle is in diastole b by the movement of blood from atrium to ventricle c while atrium is contracting d when the ventricle is in systole e during all of the above Match the following a myocardium b epicardium c endocardium d parietal pericardium 10 The outermost layer of the pericardial sac 11 The inside lining of the heart1 This study source was downloaded by 100000868292051 from CourseHero com on 09 28 2023 13 17 02 GMT 05 00 https www coursehero com file 38585730 BIO 211 Practice Exam 2doc 12 heart muscle 13 Serous membrane layer outside or covering the surface of the heart 14 Which statement best describes arteries a All carry oxygenated blood to the heart b All contain valves to prevent the back flow of blood c All carry blood away from the heart d Only large arteries are lined with endothelium e Only muscular arteries contain smooth muscle 15 Which of the following are involved directly in pulmonary circulation a superior vena cava right atrium and left ventricle b inferior vena cava right atrium and left ventricle c right ventricle pulmonary artery and left atrium d left ventricle aorta and inferior vena cava e right atrium aorta left ventricle 16 Which tunic of an artery contains endothelium a intima b media c externa d adventitia 17 Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of a capillaries b arteries c veins d arterioles 18 The arteries that directly feed the capillary beds are called a muscular arteries b arterioles c elastic arteries d aorta 19 Factors which aid venous return include all except a activity of skeletal muscles b pressure changes in the abdominal and thoracic cavities during respiration c venous valves d greater urinary output Peripheral resistance Answer a for TRUE and b for FALSE 20 increases as blood viscosity increases 21 decreases with increasing length of blood vessel 22 increases as blood vessel diameter increases MATCHINGa large arteriesb arteriolesc capillariesd venulese large veins 23 site where resistance to blood flow is greatest 24 site where blood is flowing fastest 25 site where blood is flowing slowest 26 site where histamine increases permeability 27 site where blood pressure is greatest 28 site where exchanges of nutrients and gases are made2 This study source was downloaded by 100000868292051 from CourseHero com on 09 28 2023 13 17 02 GMT 05 00 https www coursehero com file 38585730 BIO 211 Practice Exam 2doc 29 Slowing down the heart rate is a function of the a Parasympathetic nervous system b Sympathetic nervous system c SA node d epinephrine e AV node 30 The structure of a capillary wall differs from the wall of a vein or artery because a It has two tunics instead of one b There is less smooth muscle c It is a single layer only a tunica intima d There are no endothelial cells 31 Which sequence of events best represents the intrinsic conduction of an impulse through the heart 1 SINOATRIAL NODE 2 ATRIOVENTRICULAR NODE 3 PURKINJE FIBERS 4 BUNDLE OF HIS A 1 4 3 2 B 1 2 3 4 C 1 3 2 4 D 1 2 4 3 32 Arterial blood pressure increases if a Blood volume is lost b Peripheral resistance falls c Peripheral resistance increases d viscosity of the blood decreases e maximal vasodilation is achieved33 The normal pacemaker of the heart is the a A V Node b Bundle of HIS c Purkinje fibers d S A Node 34 Arterial blood pressure depends on a Cardiac output b Blood volume c Peripheral resistance d All of these35 Cardiac output equals a Stroke volume times heart rate b heart rate divided by stroke volume c stroke volume plus heart rate d heart rate times blood pressure 36 The valve between the right atrium and the right ventricle is the a tricuspid valve b bicuspid valve Mitral c aortic semilunar valve d pulmonic semilunar valve e no valve is needed 37 A heart rate less than 60 beats a minute is a Tachycardia b Bradycardia c Normal sinus rhythym d Heart block e Atherosclerosis 38 Smooth muscle and elastin of vessels would be found in the a tunica media b tunica adventitia c tunica intima d vaso vasorum3 This study source was downloaded by 100000868292051 from CourseHero com on 09 28 2023 13 17 02 GMT 05 00 https www coursehero com file 38585730 BIO 211 Practice Exam 2doc 39 The mean arterial blood pressure is a the average of the systolic and diastolic pressure b closer to the systolic pressure c closer to the diastolic pressure d the pulse pressure 40 If the atrioventricular valves are open during ventricular systole the blood would a exit via the arteries b enter the atria c enter the lungs d remain in the ventricles 41 Pressure in the left ventricle must exceed the pressure in the to eject blood into thesystemic circuit a pulmonary artery b brachiocephalic artery c left atrium d right ventricle e aorta 42 The quiesent phase or relaxation of all chambers in the cardiac cycle is duringa QRS complex b ventricular systole c interval between the end of the T wave and P waved interval