Which of the hormones increases the activity of osteoclasts and causes faster resorption of bone?
A) vitamin K
B) insulin
C) parathyroid hormone
D) thyroxine

Question

Quizplus · Accepted Answer

Parathyroid hormone (PTH) is secreted by the parathyroid glands in response to low levels of calcium in the blood. PTH increases the activity of osteoclasts, the cells responsible for breaking down bone tissue, leading to faster resorption of bone. This helps to release calcium into the bloodstream to maintain appropriate levels. Vitamin K is important for bone health, but does not directly affect osteoclast activity. Insulin and thyroxine are also not directly involved in regulating bone resorption.

Which of the Hormones Increases the Activity of Osteoclasts and Causes