Chapter 11

32) Which of these pathways correctly traces blood as it travels from the aortic arch to the left arm: A) aortic arch, left subclavian artery, left axillary artery, left brachial artery B) ascending aorta, right coronary arteries C) aortic arch, brachiocephalic trunk, right common carotid artery D) abdominal aorta, celiac trunk, left gastric artery E) aortic arch, left common carotid artery, left internal carotid artery

A) aortic arch, left subclavian artery, left axillary artery, left brachial artery

16) Substances tend to leave the bloodstream at the arterial end of the capillary because: A) blood pressure is higher at the arterial end of the capillary B) interstitial pressure is higher at the arterial end of the capillary C) the osmotic pressure of the blood is higher at the venular end of the capillary D) blood pressure is higher at the venular end of the capillary E) the osmotic pressure of the blood is higher at the arterial end of the capillary

A) blood pressure is higher at the arterial end of the capillary

6) Which of these arteries is NOT a branch of the abdominal aorta: A) left common carotid artery B) inferior mesenteric artery C) common iliac arteries D) gonadal arteries E) renal arteries

A) left common carotid artery

24) When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the: A) left ventricle to the left atrium B) right ventricle to the right atrium C) right atrium to the left atrium D) left atrium to the right atrium E) left ventricle to the right ventricle

A) left ventricle to the left atrium

11) Which one of the following areas is NOT a pressure point: A) renal artery B) radial artery C) posterior tibial artery D) facial artery E) dorsalis pedis artery

A) renal artery

21) The sinoatrial node is located in the: A) right atrium B) aorta C) right ventricle D) left atrium E) interventricular septum

A) right atrium

4) Which one of the following is true concerning the lub-dup sounds of the heart: A) the first sound is longer and louder and is caused by closure of the AV valves; the second sound is shorter and sharper and is caused by closure of the semilunar valves B) the first sound is shorter and sharper and is caused by closure of the tricuspid valve; the second sound is longer and louder and is caused by closure of the mitral valve C) they are caused by contraction of the ventricles, followed by contraction of the atria D) the first sound is longer and louder and is caused by closure of the tricuspid valve; the second sound is shorter and sharper and is caused by closure of the mitral valve E) the first sound is shorter and sharper and is caused by closure of the semilunar valves; the second sound is longer and louder and is caused by closure of the AV valves

A) the first sound is longer and louder and is caused by closure of the AV valves; the second sound is shorter and sharper and is caused by closure of the semilunar valves

29) The external iliac vein receives blood from all of the following EXCEPT: A) vertebral vein B) fibular vein C) anterior tibial vein D) popliteal vein E) femoral vein

A) vertebral vein

22) A person with a heart rate of 75 beats per minute and a stroke volume of 60 mL per beat has a cardiac output of: A) 0.8 mL/minute B) 4500 mL/minute C) 6000 mL/minute D) 120 mL/minute E) 1.25 mL/minute

B) 4500 mL/minute

30) Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart: A) sinoatrial (SA) node, atrioventricular (AV) bundle, atrioventricular (AV) node, right and left bundle branches, Purkinje fibers B) atrioventricular (AV) node, atrioventricular (AV) bundle, sinoatrial (SA) node, Purkinje fibers, right and left bundle branches C) sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers D) sinoatrial (SA) node, atrioventricular (AV) bundle, atrioventricular (AV) node, Purkinje fibers, right and left bundle branches E) atrioventricular (AV) node, sinoatrial (SA) node, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers

C) sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers

27) A heart rate of over 100 beats per minute is called: A) heart block B) diastole C) tachycardia D) bradycardia E) ischemia

C) tachycardia

42) The aortic semilunar valve is composed of: A) three cusps and opens when the right atrium contracts B) two cusps and closes when blood is filling the pulmonary circuit C) three cusps and opens when the left ventricle contracts D) two cusps and opens when the right atrium contracts E) two cusps and opens when the left ventricle contracts

C) three cusps and opens when the left ventricle contracts

33) The right AV valve is known as the: A) pulmonary semilunar valve B) aortic semilunar valve C) tricuspid valve D) bicuspid valve E) mitral valve

C) tricuspid valve

36) Which one of the following is caused by a decrease in venous return to the heart: A) an increase in stroke volume and a decrease in cardiac output B) an increase in stroke volume and cardiac output C) a decrease in stroke volume and an increase in cardiac output D) a decrease in stroke volume and cardiac output E) no change in stroke volume and cardiac output

D) a decrease in stroke volume and cardiac output

31) Which of the following blood vessels is a direct branch of the ascending aorta: A) carotid artery B) left coronary artery C) right subclavian artery D) both the right and left coronary arteries E) right coronary artery

D) both the right and left coronary arteries

26) The superior vena cava empties: A) oxygenated blood into the left atrium B) deoxygenated blood into the right ventricle C) deoxygenated blood into the left atrium D) deoxygenated blood into the right atrium E) oxygenated blood into the left ventricle

D) deoxygenated blood into the right atrium

10) Which of the following reduces heart rate: A) increased body temperature B) thyroxine C) exercise D) high blood pressure E) epinephrine

D) high blood pressure

18) Which one of the following vessels receives blood during right ventricular systole: A) aorta B) coronary arteries C) pulmonary veins D) pumonary trunk E) superior vena cava

D) pumonary trunk

35) Which area of the heart receives blood from the systemic veins: A) right ventricle B) aorta C) left ventricle D) right atrium E) left atrium

D) right atrium

34) Which one of the following does NOT receive blood directly from the aortic arch: A) thoracic aorta B) left subclavian artery C) left common carotid artery D) right common carotid artery E) brachiocephalic artery

D) right common carotid artery

40) The mitral valve is normally closed: A) when the ventricle is in diastole B) when the atrium is contracting C) when the ventricle is contracting D) when the ventricle is in systole E) by the movement of blood from the atrium to the ventricle

D) when the ventricle is in systole

12) The thick layer of the heart wall that contains contractile cardiac muscle tissue is the: A) VISCERAL PERICARDIUM B) PARIETAL PERICARDIUM C) EPICARDIUM D) ENDOCARDIUM E) MYOCARDIUM

E) MYOCARDIUM

23) The path of blood flow within the systemic vascular system is: A) arterioles, arteries, capillary beds, veins, venules B) arterioles, arteries, capillary beds, venules, veins C) arteries, arterioles, capillary beds, veins, venules D) arterioles, arteries, venules, veins, capillary beds E) arteries, arterioles, capillary beds, venules, veins

E) arteries, arterioles, capillary beds, venules, veins

8) The brachial vein: A) drains blood from the popliteal vein, then empties that blood into the external iliac vein B) drains blood from the internal jugular vein, then empties that blood into the superior vena cava C) drains blood from the popliteal vein, then empties that blood into the femoral vein D) drains blood from the axillary vein, then empties that blood into the superior vena cava E) drains blood from the radial and ulnar veins, then empties that blood into the axillary vein

E) drains blood from the radial and ulnar veins, then empties that blood into the axillary vein

37) The layer of the heart wall synonymous with the visceral layer of the serous pericardium is: A) endocardium B) either endocardium or epicardium C) parietal layer of the serous pericardium D) myocardium E) epicardium

E) epicardium

45) Varicose veins are caused by: A) orthostatic hypotension B) a loss of elasticity in blood vessels C) the accumulation of fatty substances within blood vessels D) excessive production of the enzyme renin E) incompetent venous valves

E) incompetent venous valves

1) The carotid artery is located in the: A) groin B) leg C) abdomen D) armpit E) neck

E) neck

17) Veins: A) carry blood away from the heart B) transport oxygen-rich blood C) branch into smaller vessels called arterioles D) operate under high pressure E) often have valves to prevent the backflow of blood

E) often have valves to prevent the backflow of blood

38) Which one of the following are direct branches of the left coronary artery: A) anterior interventricular and circumflex arteries B) anterior interventricular and marginal arteries C) anterior and posterior interventricular arteries D) circumflex and marginal arteries E) posterior interventricular and marginal arteries

A) anterior interventricular and circumflex arteries

28) An increase in parasympathetic activity (primarily by the vagus nerves) causes: A) an increase in both heart rate and cardiac output B) a decrease in both heart rate and cardiac output C) a decrease in heart rate and an increase in cardiac output D) an increase in heart rate and a decrease in cardiac output E) no change in both heart rate and cardiac output

B) a decrease in both heart rate and cardiac output

19) In which one of the following blood vessels is blood pressure the highest: A) arterioles B) arteries C) vena cava D) capillaries E) veins

B) arteries

44) Which one of the following are the main functions of renin and angiotensin II: A) blood pressure risesthis causes vasoconstriction and a decrease in blood pressure B) blood pressure fallsthis causes vasoconstriction and an increase in blood pressure C) blood pressure fallsthis causes vasodilation and an increase in blood pressure D) blood pressure risesthis causes vasoconstriction and further increases blood pressure E) blood pressure risesthis causes vasodilation and a decrease in blood pressure

B) blood pressure fallsthis causes vasoconstriction and an increase in blood pressure

25) Which one of the following blood vessels carries oxygenated blood: A) inferior vena cava B) pulmonary vein C) pulmonary artery D) coronary sinus E) superior vena cava

B) pulmonary vein

13) The volume of blood pumped out by each ventricle with each beat of the heart is called the: A) diastolic pressure B) stroke volume C) cardiac output D) heart rate E) cardiac cycle

B) stroke volume

20) Which one of the following is the main function of renin and aldosterone: A) they are produced whenever blood pressure rises and ultimately cause an increase in blood volume and blood pressure B) they are produced whenever blood pressure falls and ultimately cause an increase in blood volume and blood pressure C) they are produced when blood pressure rises and have no long-term effect on blood volume and blood pressure D) they are produced whenever blood pressure rises and ultimately cause a decrease in blood volume and blood pressure E) they are produced whenever blood pressure falls and ultimately cause a decrease in blood volume and blood pressure

B) they are produced whenever blood pressure falls and ultimately cause an increase in blood volume and blood pressure

2) Pulmonary veins: A) split off the pulmonary trunk B) transport oxygenated blood to the heart C) return blood to the right atrium of the heart D) transport oxygenated blood to the lungs E) transport blood rich in carbon dioxide to the lungs

B) transport oxygenated blood to the heart

9) Which one is the correct sequence going from the outermost to the innermost layer of a blood vessel wall: A) tunica intima, tunica media, tunica externa B) tunica externa, tunica media, tunica intima C) tunica media, tunica intima, tunica externa D) tunica externa, tunica intima, tunica media E) tunica media, tunica externa, tunica intima

B) tunica externa, tunica media, tunica intima

5) Generalized vasoconstriction occurs as a result of: A) a decrease in parasympathetic nervous system firing B) an increase in blood pressure C) an increase in sympathetic nervous system firing D) a decrease in sympathetic nervous system firing E) an increase in parasympathetic nervous system firing

C) an increase in sympathetic nervous system firing

3) Which one of the following blood vessels in the fetus has the highest concentration of oxygen: A) umbilical arteries B) inferior vena cava C) ductus venosus D) left atrium E) ductus arteriosu

C) ductus venosus

14) The right and left renal veins empty blood from the: A) common iliac vein B) hepatic portal vein C) inferior vena cava D) vertebral vein E) kidneys

C) inferior vena cava

15) What structure divides the left from the right ventricle: A) tricuspid valve B) interatrial septum C) interventricular septum D) bicuspid valve E) chordae tendineae

C) interventricular septum

41) Blood travels to the stomach by way of the branch of the celiac trunk called the: A) superior mesenteric artery B) inferior mesenteric artery C) left gastric atery D) common hepatic artery E) splenic artery

C) left gastric atery

39) The umbilical vein carries: A) metabolic wastes and carbon dioxide from the fetus to the placenta B) metabolic wastes and carbon dioxide from the placenta to the fetus C) oxygen and nutrients from the placenta to the fetus D) oxygen and nutrients from the fetus to the placenta E) blood from the navel into the inferior vena cava

C) oxygen and nutrients from the placenta to the fetus

43) The friction blood encounters as it flows through the vessels is called: A) cardiac output B) blood pressure C) peripheral resistance D) diastolic pressure E) stroke volume

C) peripheral resistance

7) The tricuspid valve is located between the: A) right ventricle and the pulmonary trunk B) left ventricle and pulmonary artery C) right atrium and right ventricle D) right atrium and left atrium E) left ventricle and aorta

C) right atrium and right ventricle