Baroreceptor stimulation produces:
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 1/t vagal innervation of hea and producing vasodilation, venodilation, a drop in BP, bradycardia & decrease cardiac outputQ.
Decreased hea rate & BP
Increased hea rate & BP
Increased cardiac contractility
All