Calcitonin is the other major hormone involved with calcium regulation. Parathyroid hormone (PTH), produced by the parathyroid gland, increases the level of calcium in the blo â¦ od. It usually accomplishes this by increasing the resorption rate (taking back) from bone.Calcitonin does the exact opposite and reduces calcium in the blood.arathyroid hormone (PTH) and calcitonin regulate blood calcium levels. PTH increases the calcium concentration in the blood, and calcitonin decreases it. 2 people found this useful. Edit.
The Earth bulges slightly at the Equator; the average diameter of the Earth is 12,750 kilometres (7,922 mi), but the diameter at the Equator is about 43 kilometres (27 mi) greater than at the poles.
The diameter of Uranusâs equator is 51,118 km or 31,763 miles (radius 25,559 km or 15,882 miles). The diameter when measured from pole to pole is 49,946 or 31,035 miles (radius 24,973 km or 15,517 miles).