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{{toplink
|backcolour =CDE472
|linkpage =Musculoskeletal System - Anatomy & Physiology
|linktext =Musculoskeletal System
|maplink = Musculoskeletal System (Content Map) - Anatomy & Physiology
|pagetype =Anatomy
|sublink1=Bones and Cartilage - Anatomy & Physiology#Organization of Bone
|subtext1= ORGANISATION OF BONE
}}
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[[Image:Haversian system.jpg|right|thumb|100px|<small><center>Haversian system (Courtesy of RVC Histology images)</center></small>]]
[[Image:Haversian system.jpg|right|thumb|100px|<small><center>Haversian system (Courtesy of RVC Histology images)</center></small>]]
*'''Haversian canals'''
*'''Haversian canals'''
**Run longitudinally through the bone
**Run longitudinally through the bone
**Carry anastamosing and branching blood vessels, connecting with bone marrow cavity and periosteum
**Carry anastamosing and branching blood vessels, connecting with bone marrow cavity and periosteum
**Surrounded bu concentric bony '''lamellae'''
**Surrounded by concentric bony '''lamellae'''
***Rows of interconnected lacunae within, contain '''osteocytes''' (communicate by channels in young bones)
***Rows of interconnected lacunae within, contain '''osteocytes''' (communicate by channels in young bones)
*'''Haversion canals + lamellae + osteocytes = Haversion system'''
*'''Haversion canals + lamellae + osteocytes = Haversion system'''