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Netter's Anatomy Practice Test

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Which term describes the hairlike canals that connect lacunae to each other and the central canal?
Correct Answer:
Canaliculi
Explanation:
In bone tissue, osteocytes reside in small spaces called lacunae and stay connected through slender, hairlike channels known as canaliculi. These canaliculi form a network that links neighboring lacunae and reaches the central canal, enabling nutrients, wastes, and signals to move between cells and the blood supply in the center of the osteon. That network of narrow passages is what canaliculi describes. The central canal itself is the Haversian canal, and the whole repeating unit is the osteon; viscerocranium refers to facial bones and isn’t part of this microscopic connection.

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