A person experiences dizziness after standing up quickly. Which physiological system is most directly responsible?
Q1. A person experiences dizziness after standing up quickly. Which physiological system is most directly responsible?
Answer: Regulation of blood pressure
Explanation: Orthostatic hypotension causes brain hypoperfusion. Regulation of blood pressure is correct because it matches what the question requires. USAT, HAT and MDCAT analytical sections repeat this pattern.