Kidney Tubules, Proximal

**Definition:** The renal tubule portion that extends from the BOWMAN CAPSULE in the KIDNEY CORTEX into the KIDNEY MEDULLA. The proximal tubule consists of a convoluted proximal segment in the cortex, and a distal straight segment descending into the medulla where it forms the U-shaped LOOP OF HENLE.

**Tree numbers:** - A05.810.453.736.560.570

**Synonyms:** - Proximal Kidney Tubule - Proximal Renal Tubule