Which process occurs every seven years in human bones, referring to the constant breakdown and rebuilding of bone tissue?

The process of remodeling refers to the continuous cycle of breaking down old bone tissue and forming new bone tissue. This dynamic process ensures that bones remain strong and can adapt to the stresses placed on them. In the human body, bone remodeling occurs approximately every seven years, which means that the skeleton is largely replaced during this time.

Ossification, on the other hand, is specifically the process of bone formation from cartilage or bits of bone tissue, primarily occurring during development and growth. Metabolism is a broader term that encompasses all chemical processes within the body, including those involved in energy production and usage. Rejuvenation typically refers to processes aimed at restoring vitality or youthfulness, but it is not a specific term used to describe the process of bone turnover. Thus, the correct term that accurately describes the ongoing breakdown and rebuilding of bone tissue is remodeling.