comprehensive long bone anatomy a detailed visual guide to periosteum endosteum bone marrow and trabecular structure

long bone anatomy periosteum endosteum marrow trabeculae red yellow compact spongy osteocytes osteoblasts osteoclasts haversian system histology microscopic anatomical medical human skeletal structure tissue cells diagram cross flat lay detailed science education biology study educational resource growth remodeling development osseous matrix calcium phosphate collagen fibers health disease osteoporosis fracture healing regeneration reference textbook chart