Which two hormones closely control levels of calcium in the blood?

parathyroid hormone (PTH), which is produced by the parathyroid glands. I hope it helps

Explanation:

The two hormones that has a close control over the levels of calcium in blood are the parathyroid hormone and the calcitonin.

Explanation:

The calcium ion is one of the most important inorganic ion that is required by the body, this helps in most of the signal mechanisms of the body. The calcium ion is mostly stored in the bones and is needed whenever it is required by the body.

The 2 important hormones such as the parathyroid hormone and the calcitonin act in the opposite directions to regulate this calcium levels in blood.

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