Which hormone increases $Ca^{++}$ levels?

If the parathyroid gland of a child is removed,which activity is disturbed?

Statement $P$: The hormones of the parathyroid gland are steroid in nature.
Statement $Q$: Muscles contain globular proteins.

Name the hormone $X$ based on the provided flow chart.

Parathormone $(PTH)$ regulates which of the following?

$A$ person is having problems with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?