Kidney plays a role in maintaining constancy of milieu interior. Milieu interior refers to:
Milieu interior refers to the extracellular environment. The main function of kidney is homeostasis, the maintenance of the constancy of the milieu interior. Ref: Fundamentals of Medical Physiology by Joel Michael, Sabyasachi Sircar, 2010, Chapter 53.
ECF
ICF
Plasma
Serum