Low levels of calcium in the blood directly stimulate
A)the parafollicular cells of the thyroid gland to release calcitonin.
B)decreased activity of osteoclasts.
C)increased excretion of calcium in the urine.
D)decreased absorption of phosphate in the small intestine.
E)the chief cells of the parathyroid glands to release PTH.

Question

Quizplus · Accepted Answer

Low levels of calcium in the blood stimulate the chief cells of the parathyroid glands to release parathyroid hormone (PTH), which then leads to increased activity of osteoclasts, increased absorption of calcium in the small intestine, and decreased excretion of calcium in the urine.

Low Levels of Calcium in the Blood Directly Stimulate