Meet new hormones: Thyroid and Parathyroid Hormones!

There are two types of cells involved in this hormones: ... and ... .

The main thyroid hormones are ... and ... . They are derived from ... ; act in all tissues and organs; the ones with ... ; and regulate ... .

Calcium is really important in the body.
Do you know some functions?

This calcium is regulated by ... .

Calcitonin work is to ... osteoclasts increasing Ca levels in ... , say to us when to ... eating and stimulate the ... of VitD.

Calcitonin action in bones

Parathormone ... calcium and ... phosphate in plasma (and opposite for the deficit).

It is in charge of ... osteoclasts and increase renal ... of calcium, ... of phosphate, and intestinal ... of calcium.

The major source of VitD is produced due to ... and the activation of the last intermediate by the action of ... , maintaining the ... in the body.

Activation of VitD

Which are the roles of VitD?