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3.1.1 Microscopic Anatomy of the Bone [Microscopic Structures]

Cuesta College-Human Anatomy (BIO 205)-Fall 2010-Dr. S. Sachs, Instructor
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Osteon
(haversian system), basic functional and structural unit of mature compact bone
Central (Haversian) Canal
cylindrical channel in the center of the osteon and runs parallel to it; blood vessels and nerves that supply bone travel through it
Osteocytes
(in lacunae) living, mature bones cells; maintain the bone matrix and detect mechanical stress on the bone.
Lacunae
gap where osteocytes are located
Canaliculi
(lower canals) communicates from one ring (lamellae) to another
Lamellae
rings or layers around a bone (look like tree trunk rings)
Periosteum
fibrous sheath surrounding the whole bone