The parathyroid hormone is a/an.....

Which of the following hormones was discovered by James Bertram Collip?

What is the normal range of blood calcium levels in an adult human?

Which of the following given organs are influenced by the activity of $PTH$?
The option containing all correct answers is
$I$. Kidney $II$. Bone $III$. Muscle $IV$. Intestine $V$. Brain

Deficiency of parathormone in humans leads to .....

Parathormone is secreted during: