This video shows an animation of the normal anatomy of bone and what occurs to bone that is affected by osteoporosis. It also explains why osteoporosis is more likely in to occur in women and as we age.

This video contains an artist's representation of what bone looks like at the microscopic level. While many think that bone is simply a solid piece of calcium, it is actually a living, changing tissue with blood vessels and various small areas of open space.

This video shows a close up view of bone anatomy and how blood is delivered to bone.

This video shows the constant battle between the two main cell types in bone, osteoblasts and osteoclasts. Osteoblasts builds bone while osteoclasts dissolve bone for renovation and remodeling. The video explains how these cells influence the strength of bone throughout life.