Increased Heart Rate Reflexly Caused by Decreased Blood Pressure Is

Question

Increased heart rate reflexly caused by decreased blood pressure is mainly due to
A) Parasympathetic stimulation of the left heart
B) Parasympathetic stimulation of the right heart
C) Parasympathetic withdrawal of the left heart
D) Parasympathetic withdrawal of the right heart
E) Decreased sym pathetic stimulation of the right heart

Accepted Answer

The increased heart rate in response to decreased blood pressure is primarily due to parasympathetic withdrawal of the right heart, which reduces vagal tone and allows the heart rate to increase.