Bone: cement lines
The outer boundaries of osteons are marked by cement lines. Cement lines have a high concentration of ground substance and, therefore, appear as basophilic bands around the osteons. Cement lines mark the transition between resorption and new growth, as well as indicating interruptions in a growth pattern, similar to tree rings. 200x
Cement lines
The outer boundaries of these osteons are marked by cement lines. Cement lines have a high concentration of ground substance and, therefore, appear as basophilic bands around the osteons. Cement lines mark the transition between resorption and new growth, as well as indicating interruptions in a growth pattern, similar to tree rings. 200x
Inner circumferential lamellae
The outer boundaries of these osteons are marked by cement lines. Cement lines have a high concentration of ground substance and, therefore, appear as basophilic bands around the osteons. Cement lines mark the transition between resorption and new growth, as well as indicating interruptions in a growth pattern, similar to tree rings. 200x
Osteons
The outer boundaries of these osteons are marked by cement lines. Cement lines have a high concentration of ground substance and, therefore, appear as basophilic bands around the osteons. Cement lines mark the transition between resorption and new growth, as well as indicating interruptions in a growth pattern, similar to tree rings. 200x
Resorption canal >
A resorption canal can be differentiated from an Haversian canal, because it is lined with an endosteum containing osteoclasts, has an irregular outline and is not surrounded by concentric lamellae.
Osteoclasts
A resorption canal can be differentiated from an Haversian canal, because it is lined with an endosteum containing osteoclasts, has an irregular outline and is not surrounded by concentric lamellae.
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