<prompt> Clamping of the carotid aeries below proximal the carotid sinus is likely to produce:Increase in vasomotor centre activityIncrease in discharge of carotid sinus afferent nervesDecreased hea rate and blood pressureBaroreceptor adaptation  <response>: Ans. a. Increase in vasomotor centre activityClamping of the carotid aeries proximal to the carotid sinus elevates the blood pressure and hea rate because the procedure lowers the pressure in the carotid sinus Baroreceptor reflex 