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If the pacemaker cells in the SA node become more permeable to potassium ions, the
Q5: The amount of blood remaining in the
Q6: Turbulent blood flow occurs<br>A) when there are
Q14: _are the only blood vessels whose walls
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Q50: All of the following are true of
Q66: During exercise<br>A) venous return increases.<br>B) vasodilation occurs
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Q167: What effect would compressing the inferior vena