Structural and Functional Kidney Unit
This page is the CodyCross answer for the clue below from Trip to Spain, Group 849, Puzzle 2 (Street of Flowers).
Question is: Structural and Functional Kidney Unit
and the answer is: NEPHRON
Word Meaning:
NEPHRON — (anatomy) The basic structural and functional unit of the kidney, which filters the blood in order to regulate chemical concentrations, and thereby produces urine.
Definitions from Wiktionary.