The collecting duct is a segment of the nephron in the kidneys that plays a crucial role in the regulation of water and electrolyte balance. This structure is responsible for transporting urine from the renal tubules to the renal pelvis, where it is ultimately drained into the ureters. The collecting duct is essential for concentrating urine, as it adjusts the final composition of urine in response to hormonal signals and the body's hydration status.
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