Physiology · Urinary System · Medium
Renin
Meaning: An enzyme released by the kidney in response to low blood pressure that starts a hormone cascade raising pressure.
In practice: A low renin level alongside high aldosterone suggested primary hyperaldosteronism.
Quick check
Two questions on related physiology words.
Which word means: The set of metabolic reactions that break complex molecules into simpler ones, releasing energy.
Answer: Catabolism
Which word means: A hormone made mainly by the kidneys that stimulates the bone marrow to produce red blood cells.
Answer: Erythropoietin
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