Bone: the tissue
This image of a ground bone preparation presents a very different picture from that of a decalcified preparation. No cells or organic matrix are preserved. Internal spaces within the bone appear black in this preparation however the lamellar construction of the bone matrix shows clearly. Compact lamellar bone, 200x
Lamellae >
The extracellular matrix is constructed of lamellae that can be either by arranged concentrically, as seen here, or as flattened plates on the surface of a bone.
Osteocyte lacunae >
Osteocyte lacunae, where osteocyte cell bodies were located, appear as elongated black spaces that lie between the lamellae. Delicate tunnels in the matrix radiate out from the lacunae, which, in life, contain the fine cytoplasmic process that extend from the osteocytes.
Canaliculi
Osteocyte lacunae, where osteocyte cell bodies were located, appear as elongated black spaces that lie between the lamellae. Delicate tunnels in the matrix radiate out from the lacunae, which, in life, contain the fine cytoplasmic process that extend from the osteocytes.
Haversian canals >
Concentric lamellae surround a central space called the Haversian canal and the entire structure is a Haversian system.
Haversian system
Concentric lamellae surround a central space called the Haversian canal and the entire structure is a Haversian system.
Image source >
Image source > Image from the University of Cincinnati slide collection.
PREVIOUS