If you want to know what bone is: watch this!
An essential guide to bone, its formation, remodelling and maintenance is given by Susan Anderson in this microscopic tour of the substance that holds us up and will be here long after the rest of us is gone.
Underlying mechanisms are discussed as is the pathogenesis at a cellular level of osteoporosis, Paget's Disease and osteogenesis imperfecta.
Susan Anderson is Associate Professor of Pathology at the University of Nottingham.