Calcium Homeostasis
How Calcium is maintained in blood??
To know the answer watch the video....
BTW,
two hormones use in Ca+2 Homeostasis, they are;
1) Calcitonin by Thyroid hormone
2) Parathyroid hormone (PTH) by Parathyroid gland present on Thyroid Hormone.
PTH also reabsorbs Ca+2 from Kidney.