Which process is responsible for increased blood pressure when the kidneys release renin into the bloodstream?

💡 Explanation

The renin-angiotensin-aldosterone system (RAAS) is activated by renin, which leads to vasoconstriction and increased sodium retention, therefore raising blood pressure. RAAS activation causes blood pressure increase rather than direct baroreceptor effects, atrial peptide reduction, or reduced sympathetic tone, because these either lower blood pressure or act indirectly.

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