Which of the following statements is NOT true regarding sympathetic stimulation of the heart?
A) It increases the rate of depolarization of the SA node.
B) It increases excitability of the AV node.
C) It results in stronger ventricular contractions.
D) It increases venous return.
E) None of these.
Correct Answer:
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Q21: The movement of which two ions is
Q22: An increase in heart rate is accompanied
Q23: In a normal ECG, no separate wave
Q24: At the onset of ventricular diastole, the
Q25: Ventricular systole includes the periods of
A) isometric
Q27: Parasympathetic stimulation of the heart
A) increases venous
Q28: Venous return and by extension end-diastolic volume
Q29: Which of the following will cause local
Q30: Venous return is affected by
A) the cardiac
Q31: Which of the following decreases with increased
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