<prompt> Baroreceptor stimulation produces:Decreased hea rate BPIncreased hea rate BPIncreased cardiac contractilityAll  <response>: A i.e. Decreased HR BP Baroreceptors are the stretch receptors in the walls of hea blood vessels eg carotid sinus aoic arch receptors, receptors in walls of atria at enterance of SVC, IVC pulmonary veins and receptors in pulmonary circulation cardio- pulmonary receptors. These are stimulated by distension of the structure in which they are located 1t vagal innervation of hea and producing vasodilation, venodilation, a drop in BP, bradycardia decrease cardiac outputQ. 