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Questions and Answers
The osteon is the primary functional unit of spongy bone.
The osteon is the primary functional unit of spongy bone.
False (B)
Lamellae are thick layers of muscle matrix that form the osteon.
Lamellae are thick layers of muscle matrix that form the osteon.
False (B)
The central canal contains both blood vessels and nerves.
The central canal contains both blood vessels and nerves.
True (A)
Canaliculi are large channels that connect osteocytes to the central canal.
Canaliculi are large channels that connect osteocytes to the central canal.
Osteocytes are responsible for maintaining bone tissue and communicating through canaliculi.
Osteocytes are responsible for maintaining bone tissue and communicating through canaliculi.
Flashcards
Osteon
Osteon
The basic unit of compact bone, made of concentric circles around a central canal.
Lamella
Lamella
Thin layers of bone tissue that form the osteon.
Central Canal
Central Canal
A tunnel in the center of an osteon containing blood vessels and nerves.
Lacunae
Lacunae
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Osteocytes
Osteocytes
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Study Notes
Osteon Structure
- Osteons (Haversian systems) are the basic units of compact bone.
- They consist of concentric rings of bone matrix called lamellae.
- A central canal (Haversian canal) runs through the center of each osteon, containing blood vessels and nerves.
Components of an Osteon
- Lamellae are thin layers of bone matrix that arrange around the central canal.
- Lacunae are small spaces within the bone matrix that house osteocytes.
- Canaliculi are tiny channels that connect lacunae. They allow for nutrient and waste transport between osteocytes.
- Osteocytes are mature bone cells that maintain bone tissue and communicate via canaliculi.
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