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9. Prostaglandins Help Blood Vessels Relax

Prostaglandins are fats that develop at the sites of infection or injury to help with tissue repair. Those made in the kidneys, however, have a slightly different function. They can act as vasodilators, which help blood vessels open and relax, reducing pressure and increasing blood flow. This function balances the blood pressure increase that occurs upon stimulation of the renin enzyme.

anatomy the kidneys

iLexx / Getty Images

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