This image illustrates compact or cortical bone, sectioned across the long axis of the bone.The specimen in this slide is "ground bone," a sliver of bone from which all organic materials (cells and collagen) have been removed, so we see here only the remaining mineral structure. Bone dust, a byproduct of the grinding process by which the specimen was prepared, can be found in Haversian canals.
The most prominent features are the sets of concentric lamellae, called osteons, each with a Haversian canal at its center.
In life, each Haversian canal contains a blood vessel which brings nutrients to the tissue. Osteocytes occupy lacunae (here visible as small dark oblongs interspersed among the lamellae) interconnected by canaliculi.
Historical note: The eponym "Haversian" commemorates Clopton Havers, b. 1657.
Click on a thumbnail below for additional information.
Osteons Lamellae Lacunae and canaliculi
Comments and questions: email@example.com
SIUC / School
of Medicine / Anatomy / David
Last updated: 15 November 2021 / dgk