volume definition, meaning, what is volume: the amount of space that is contained within an object or solid shape: . Learn more.
However, parathyroid hormone and calcitonin work together to control calcium levels in the blood. The blood calcium level is the main stimulus for the release of these hormones, as the release of these hormones is not controlled by the pituitary.
Parathyroid hormone opposes the effect of calcitonin, a hormone  produced by the thyroid gland that regulates calcium levels. It  removes calcium from its storage sites in b â¦ ones and releases it  into the bloodstream.alcitonin slows the release of calcium from bones into  bloodstream, thereby keeping blood levels of calcium to a minimum.    Parathyroid hormone does the opposite.