Southern Illinois University
SSB Index
Nervous Tissue

Muscle Tissue

Skeletal Tissue


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.

Lacunae and canaliculi

Comments and questions:

SIUC / School of Medicine / Anatomy / David King
Last updated:  15 November 2021 / dgk