Renin-Angiotensin System — NDEB AFK MCQ
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Correct answer: E — Angiotensin-converting enzyme (ACE)
ACE (angiotensin-converting enzyme), located primarily in pulmonary endothelium, converts angiotensin I to angiotensin II. Angiotensin II is a potent vasoconstrictor and stimulates aldosterone secretion. Renin (from juxtaglomerular cells) converts angiotensinogen to angiotensin I. ACE inhibitors are relevant in dentistry as they may cause cough or angioedema.
Reference: Guyton – Textbook of Medical Physiology, 14th ed., 2020