Physiology Activation of the baroreceptor reflex A Is primarily involved in short-term regulation of systemic blood pressure. B Leads to an increase in heart rate because of inhibition of the vagal cardiac motor neurons. C Inhibits neurons in the CVLM. D Excites neurons in the RVLM. 💡 Explanation Activation of the baroreceptor reflex ✓ Correct Answer: A. Is primarily involved in short-term regulation of systemic blood pressure.