Kidney function and nephron structure
High-school/pre-med-level questions on nephron anatomy, transport mechanisms, SGLT, glucose handling, medullary gradients and urine concentration.
Conceptual Pre-med/IB-style questions on the renin–angiotensin–aldosterone system (RAAS) and antidiuretic hormone (ADH): why these systems exist, what triggers them, how they amplify signals, how they change urine composition, and how they interact during dehydration, hemorrhage, salt/water loads, and common physiology-style scenarios.