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How Does The Body Regulate Blood Pressure

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How Does The Body Regulate Blood Pressure
Regulation of Blood Pressure and Blood Volume
One way the body regulates blood pressure and blood volume is through the body’s use of baroreceptors, a mechanoreceptor of the nervous system. If there were low arterial blood pressure, the baroreceptors in one’s blood vessels could detect this. One’s baroreceptors in the aorta and carotid sinus of the cardiac system are constantly monitoring blood pressure. They send messages containing any changes through the central nervous system to the medulla oblongata. The medulla oblongata then puts out an increase in sympathetic input to release adrenaline, a hormone of the endocrine system, which causes vasoconstriction. The vasoconstriction would then cause the blood pressure to rise back to normal.

The body also regulates blood pressure by increasing or decreasing sympathetic and parasympathetic input of the nervous system. By increasing sympathetic input and decreasing the parasympathetic input, the body’s “fight or flight” response is triggered. The
…show more content…
Chemoreceptors of the nervous system are there to protect the body’s blood pH from wavering too much from it’s normal blood pH. These chemoreceptors detect levels of CO2 in the blood by tracking the number of Hydrogen ions. If the number of Hydrogen ions is too low or too high, the medulla sends impulses through the nervous system to the inhalation muscles to breathe at a specific rate to increase or decrease the CO2 in the blood. Blood becomes more acidic the more CO2 it contains. Therefore, the body has control over the pH of the blood because it can control the amount of CO2 it contains. The peripheral chemoreceptors transmit impulses to the medulla to slow or speed up one’s heart rate. This deceleration of the cardiac system manipulates blood pH by saving CO2 to raise blood pH. The heart would then accelerate it’s heart beat to rid of CO2 to lower the blood

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