Which term describes the inner region of the kidney that contains the collecting ducts and loops of Henle?

• A. Cortex
• B. Pelvis
• C. Medulla
• D. Ureter

Answer: (C)

The inner region of the kidney that contains the collecting ducts and loops of Henle is the medulla. The kidney has an outer cortex and an inner medulla; the loops of Henle descend into the medulla and the collecting ducts run through it toward the renal pelvis. The pelvis is the central urine-collecting area that funnels urine into the ureter, which carries urine to the bladder. So, the term that describes that inner region is the medulla.