The functional Unit of Bone
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The Osteon
Compact Bone
marrow cavity
Flat Bone has no
Spongy Bone (diploe)
Middle layer of flat bones are made up of
Volkmann Canals
Perforating canals
Spongy Bone
Provides strength with little weight
Spongy Bone
Spongelike appearance formed by rods and plates of bone called trabeculae
Compact Bone
Surfaces of flat bone are composed of
the Haversian System
The Osteon
The Osteon
cylinders of tissue formed from concentric layers (lamellae) of matrix arranged around central canal holding a blood vessel
Trabeculae
develop along bone's lines of stress
Trabeculae
have few osteons or central canals
Lacunae
osteocytes reside in small spaces between lamellae called
Perforating canals
vascular canals perpendicularly joining central canals
