This extremely detailed bone structure model depicts a three-dimensional section of a lamellar bone, showing a typical structure of a tubular bone enlarged 80 times. The bone structure model shows various planes in cross and longitudinal section through all levels of the bone, as well as a 2-plane section through the inner structure of the bone marrow. The typical elements of a lamellar bone are easily identified in this bone structure model and help to understand its structure and function with the characteristic osteons, also referred to as Haversian systems. This bone structure model allows a graphic illustration of the interplay of the individual components, such as spongy and compact substance, endosteum, cortical substance, osteocytes, Volkmann and Haversian canals. 3B MICROanatomy™ Bone structure supplied on base. There is no better way to teach and learn about the structure of the human bone then with this great Microanatomy bone model!