Spongy & Compact bone structures

periosteum

Periosteum

Covers entire bone surface except at joints. Contains blood vessels, lymphatic vessels and sensory nerves

perforating fibers

Perforating fibers

Collagen fiber bundles that anchor the periosteum to bone

osteon

Osteon

Functional unit of mature compact bone

central canal

Central canal

Center of osteon and contains sensory nerves and the blood vessel that provide oxygen and nutrients to the osteocytes

endosteum

Endosteum

Cellular lining on inner surfaces of bones

lamellae

Concentric layers of bone w/i an osteon

Concentrinic lamellae

Concentrinic lamellae

Form cylinder structures called osteons

interstitial lamellae

Irregularly shaped remnants of previous osteons that fill the gaps between impact osteons

interstitial lamellae

Lacunae

Lacunae

Cavaties w/i the lamellae that house the osteocytes

Osteocyte

Osteocyte

Bone cell responsible for maintenance and turnover of the mineral content of the surrounding bone

canaliculi

Canaliculi

Channels that connect lacunae to osteons

Perforating canal

Perforating canal

Allows blood vessels, lymphatic vessels, and nerves to enter the bone

trabeculae

trabeculae

tiny bone spicules lined w/ endosteum that makes up the structure of spongy bone