Vitamin D is then hydroxylated into it's active form, [[Calcium Homeostasis - Anatomy & Physiology#Calcitriol (Active Vitamin D3)|Calcitriol]] in the [[Endocrine System - Kidney - Anatomy & Physiology|kidney.]] | Vitamin D is then hydroxylated into it's active form, [[Calcium Homeostasis - Anatomy & Physiology#Calcitriol (Active Vitamin D3)|Calcitriol]] in the [[Endocrine System - Kidney - Anatomy & Physiology|kidney.]] |