Which hormone increases osteoclast activity to release more calcium ions into the bloodstream?
A) calcitonin
B) thyroxine
C) parathyroid hormone
D) estrogen

Question

Quizplus · Accepted Answer

Parathyroid hormone (PTH) increases the activity of osteoclasts, leading to the breakdown of bone tissue and the release of calcium ions into the bloodstream. This helps to maintain a normal calcium level in the blood. Calcitonin is the hormone that inhibits osteoclast activity and promotes calcium uptake by bones, while thyroxine and estrogen also have roles in bone remodeling but do not directly increase osteoclast activity.

Which Hormone Increases Osteoclast Activity to Release More Calcium Ions