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ACBS 215 Exam 4 questions with complete solutions
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ACBS 215 Exam 4 questions with complete solutions
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ACBS 215 Exam 4 questions withcomplete solutions
An increase in the resistance to blood flow to the lungs would cause hypertrophy (because of greater
work) of which one of the following chambers?
A. right atrium
B. left atrium
C. right ventricle
D. left ventricle - correct answer ✔✔c
Venous blood (unoxygenated) enters the:
A. left atrium from the vena cava
B. pulmonary trunk from the left ventricle
C. pulmonary trunk from the right ventricle
D. left atrium from the pulmonary veins - correct answer ✔✔c
blood flow through the arteries is maintained during diastole because of:
A. contraction of the ventricles
B. inertia
C. elastic fibers in large vessels
D. expansion of the thorax during inspiration - correct answer ✔✔c
blood pumped from the left ventricle goes through the:
A. aortic semilunar valve
B. pulmonary trunk semilunar valve
C. right A-V valve
D. left A-V valve - correct answer ✔✔a
blood flow through the heart, when received from the venae cavae, proceeds in the following order:
, A. left atrium, right atrium, right ventricle, left ventricle
B. right atrium, left atrium, left ventricle, right ventricle
C. right atrium, right ventricle, left atrium, left ventricle
D. left atrium, left ventricle, right atrium, right ventricle - correct answer ✔✔c
because of its greater work, the heart chamber with the greatest muscle mass is the:
A. right ventricle
B. left ventricle
C. right atrium
D. left atrium - correct answer ✔✔b
during ventricular contraction (systole):
A. the A-V valves are closed, and the semilunar valves are open
B. the semilunar valves are closed, and the A-V valves are open
C. all valves (A-V and semilunars) are open
D. all valves (A-V and semilunars) are closed - correct answer ✔✔a
which one of the following circulatory divisions has the lowest pressure?
A. capillaries
B. veins
C. arterioles
D. arteries - correct answer ✔✔b
smooth muscle fibers are contained within:
A. all of the blood vessels
B. capillaries
C. capillaries and veins
D. veins - correct answer ✔✔d
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