Select the correct statement.

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Pulmonary artery carries oxygenated blood to the lungs.

Adrenal medullary hormones decrease the cardiac output.

The AV node generates the maximum number of action potentials.

Blood pressure of more than140/90 affects the kidneys.

answer is D.

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Detailed Solution

Hypertension, commonly called high blood pressure (140/90 or more) can constrict and narrow the blood vessels, which eventually damages and weakens them throughout the body, including in the kidneys. The narrowing reduces blood flow. If the blood vessels of the kidneys are damaged, the kidneys cannot remove all wastes and excess fluid. Excess fluid in the blood vessels can raise your blood pressure even more, creating a vicious cycle, and cause more damage leading to kidney failure.

Adrenal medullary hormones increase the cardiac output. Pulmonary artery carries deoxygenated blood to the lungs. The SA node generates the maximum number of action potentials.

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