Calcitonin

A) decreases osteoblast activity.
B) decreases osteocyte activity.
C) decreases osteochondral progenitor cell activity.
D) is associated with decreased osteoclast activity.
E) has no effect on bone cells.

Calcitonin

Calcitonin is a hormone produced by the thyroid gland that helps regulate blood calcium levels by lowering them when high.

Osteoblast Activity

The process involving bone-forming cells responsible for bone growth and the synthesis of new bone tissue.

Osteoclast Activity

The process involving osteoclast cells, which are responsible for bone resorption, part of the bone remodeling process.