What are baroreceptors and how do they work?
Answer: Baroreceptors are receptors that are sensitive to change in blood pressure. They are located in the aortic arch and carotid sinuses. When blood pressure changes, baroreceptors are activated, and the cardioaccelatory center is stimulated. Then, if the blood pressure was low, the heart rate will increase and blood vessels will constrict which will cause the blood pressure to go back to normal. If the blood pressure was high, the heart rate will decrease and blood vessels will dilate which will cause the blood pressure to go back to normal.