This text investigates the physiological mechanisms by which the mammalian kidney regulates water balance and maintains homeostasis. D.B. Moffat, an expert in renal anatomy and physiology, utilizes established biological research to explain the complex interaction between the nephron, the loop of Henle, and the hormonal signals that dictate urine concentration. The work provides a structured framework for understanding how the kidney functions as a primary organ of osmoregulation.

Experts recognize this volume as a concise, foundational resource for students of biology and medicine. Readers frequently note the technical density of the prose, which is typical of the Oxford Biology Readers series.