Picture of Baroreceptors
Baroreceptors are specialized nerve cells that are located in arteries near the heart. Baroreceptors detect blood pressure and send nerve signals that reach the kidneys, heart, arteries, and veins to cause them to act together to regulate blood pressure. The baroreceptors' main function is to sustain cardiac output and ensure a healthy amount of blood reaches the organs in the body.
Image Source: MedicineNet
Text Reference: Medical Science Monitor, vol. 16, 2010: "Arterial Baroreceptors in the Management of Systemic Hypertension"
Text Reference: Medical Science Monitor, vol. 16, 2010: "Arterial Baroreceptors in the Management of Systemic Hypertension"