Final answer:
The exposed surfaces of bones tend to degrade into flakes due to a process called osteoclastic bone resorption.
Step-by-step explanation:
The exposed surfaces of bones tend to degrade into flakes due to a process called osteoclastic bone resorption. This process involves the action of specialized cells called osteoclasts, which break down and remove old or damaged bone tissue.
Exposure is a key factor in triggering this process. When a bone's protective covering is lost or damaged, such as in the case of an injury or disease, the underlying bone is exposed to the surrounding environment. Over time, the exposed surface can deteriorate and flake away.
This degradation of bone surfaces can have various causes, such as osteoporosis, arthritis, or infections that affect the bone. It is important to maintain bone health through proper nutrition, exercise, and medical care to prevent excessive bone degradation and flaking.