what are the two primary things that blood pressure is ey and maintained by
Blood pressure is primarily regulated and maintained by the actions of the heart and the blood vessels in the body.
1. The heart: The pumping action of the heart is responsible for creating the pressure that propels blood through the arteries and into the rest of the body. The force and rate at which the heart pumps, known as cardiac output, play a significant role in regulating blood pressure.
2. Blood vessels: The blood vessels, particularly the arteries, help to control blood pressure by adjusting their size and elasticity. When the arteries constrict or dilate, they can either increase or decrease the resistance to blood flow, affecting blood pressure. Additionally, the blood vessels can release certain chemicals that regulate blood pressure, such as nitric oxide.