Which term describes the functional unit of compact bone?

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Multiple Choice

Which term describes the functional unit of compact bone?

Explanation:
The key unit of compact bone is the osteon, also known as the Haversian system. Each osteon is a cylindrical structure with concentric lamellae of mineralized matrix surrounding a central Haversian canal that houses blood vessels and nerves. Osteocytes live in lacunae between the lamellae and communicate through canaliculi, facilitating nutrient and waste exchange. This arrangement provides both strength and efficient nourishment for dense bone. The periosteum is the outer membrane that covers bone, not the functional unit, and trabeculae describe the lattice of cancellous bone rather than compact bone’s unit.

The key unit of compact bone is the osteon, also known as the Haversian system. Each osteon is a cylindrical structure with concentric lamellae of mineralized matrix surrounding a central Haversian canal that houses blood vessels and nerves. Osteocytes live in lacunae between the lamellae and communicate through canaliculi, facilitating nutrient and waste exchange. This arrangement provides both strength and efficient nourishment for dense bone. The periosteum is the outer membrane that covers bone, not the functional unit, and trabeculae describe the lattice of cancellous bone rather than compact bone’s unit.

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