The ________ accelerates the heart rate when the walls of the right atrium are stretched.

Question

Quizplus · Accepted Answer

This question is asking about the physiological mechanism that accelerates heart rate when the walls of the right atrium are stretched. This is referring to the atrial reflex, which is a reflex response triggered by stretch receptors in the walls of the atria. When the atria are stretched, such as when they are filled with an increased volume of blood, this triggers the reflex to increase heart rate via the sympathetic nervous system. Therefore, the correct answer is D) atrial reflex.

The ________ Accelerates the Heart Rate When the Walls of the Right