Final answer:
The statement is True. Bone tissue undergoes constant remodeling through the actions of osteoclasts, which break down bone, and osteoblasts, which form new bone. This process is essential for bone repair, reshaping, and mineral homeostasis.
Step-by-step explanation:
True or False: Bone tissue is continually being broken down and rebuilt.
The statement is True. Bone tissue is dynamic and undergoes a continuous, lifelong process known as bone remodeling. Osteoclasts are the cells responsible for resorbing and breaking down old bone tissue, while osteoblasts are the cells that create new bone to replace it. This process is not only vital for minor repairs and the maintenance of bone integrity but also plays a key role in the regulation of mineral homeostasis in the blood. With about 10 percent of an adult's skeletal mass being remodeled each year, this ensures that the bones remain a strong and viable support structure for the body.
Bones are indeed living tissues that contain blood vessels, nerves, and various cells and proteins. Therefore, they are constantly changing, with new bone being made as old bone is removed, showcasing the intricate balance between bone formation and resorption.