Kidney plays a role in maintaining constancy of milieu interior. Milieu interior refers to:: (A) ECF, (B) ICF, (C) Plasma, (D) Serum
Answer is A. 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.