Skip navigation

Home -> Unit 3 -> Bone

Previous_button
Next_button

HA2

Bone02o
In HA2, the inner (bottom) and outer (top) circumferential lamellae (bone layers) are arranged around the inner and outer regions of the compact bone, like growth rings of a tree. These layers formed by appositional growth. Haversian systems or osteons can be seen between the inner and outer circumferential lamellae. Most of the Haversian systems or osteons in HA2 have 2 to 3 concentric lamellae of osteocytes around them. Haversian canals contain vessels, nerves, and resting osteoblasts.