👉 Non-decalcified refers to a type of bone that does not have any calcification or deposition, typically found in the bones of older individuals who have had their skeletal system weakened by osteoporosis. This condition is characterized by thinning and loss of bone tissue due to age-related changes such as reduced collagen production, decreased blood flow to the bone, and a reduction in mineral density. Non-decalcified bones can be found in various parts of the body, including vertebrae (the backbone