Identify the hormone that stimulates the release of calcium ions from bone matrix.Explain its mechanism of action.
A)parathyroid hormone; increases osteoblast break down of bone matrix
B)parathyroid hormone; increases osteoclast break down of bone matrix
C)calcitonin; increases osteoblast break down of bone matrix
D)calcitonin; increases osteoclast break down of bone matrix
E)cholecalciferol; increases osteoblast break down of bone matrix

Question

Quizplus · Accepted Answer

Parathyroid hormone stimulates the activity of osteoclasts, which are the cells that break down bone matrix to release calcium ions into the bloodstream. This results in an increased level of calcium in the blood, which is important for a variety of physiological processes, such as muscle contraction and nerve function.

Identify the Hormone That Stimulates the Release of Calcium Ions