In this episode of the RD Exam Ready Podcast, we break down the renal system from the ground up. Zak covers kidney anatomy and function, filtration and absorption, and how the nephron maintains fluid, electrolytes, and pH balance. You’ll also learn about GFR, the RAAS system, and why nutrition is so critical in kidney disease. We finish with practice questions to help you connect the physiology to what you’ll actually see on exam day.