Changes

Whilst this is a key source of the vitamin in humans, as many animal species have hair covered skin, Vitamin D from this region is usually minimal, with dietary sources being much more important.  

Whilst this is a key source of the vitamin in humans, as many animal species have hair covered skin, Vitamin D from this region is usually minimal, with dietary sources being much more important.  

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