Calcitonin also helps in increasing Ca level in blood
Dear student, Calcium level in body is controlled by two hormones Parathyroid hormone (PTH) and Calcitonin. When there is high amount of calcium then a hormone known as calcitonin is released which lowers the blood calcium level. Its action is antagonistic to that of parathormone that increases calcium level in blood. So, the correct answer is (3) Parathormone. Regards