Which of the following conditions would cause an increase in the heart rate?
A) activation of the parasympathetic nervous system
B) acetylcholine stimulation of nodal cells and contractile cells
C) activation of the sympathetic nervous system
D) decreased blood concentration of carbon dioxide and increased blood pressure
E) decreased blood concentration of oxygen and increased blood pressure

Question

Quizplus · Accepted Answer

Activation of the sympathetic nervous system leads to an increase in heart rate.

Which of the Following Conditions Would Cause an Increase in the Heart