JG Cells Renin — FRCA Primary MCQ
Instant feedback + full explanation. One question, done properly.
Educational content. Not a substitute for clinical judgement or local policy.
Reveal the answer and explanation
Correct answer: D — Renin
JG cells secrete renin in response to: decreased perfusion pressure / decreased NaCl at macula densa / increased sympathetic activity (beta-1). Renin converts angiotensinogen to angiotensin I which is then converted to angiotensin II by ACE.
Reference: Power Kam 2018 Principles of Physiology for the Anaesthetist