What is the purpose of valves in the circulatory system?
A) Control the volume of blood moved in each pulse
B) Prevent the backflow of blood in the vessels
C) Support the bifurcation of the veins
D) Allows for expansion and contraction of the veins
B
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The motor function of the nervous system is also known as ________ function
A) efferent B) afferent C) integrative D) sensory
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Most pulmonary infarctions associated with thromboembolic obstruction occur in which part of the lung?
a. Right lung b. Lung bases c. Lung apexes d. Left lung
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