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Microscopic Structure of Compact Bone 13. Trace the route taken by nutrients through a bone, starting with the periosteum and ending with an osteocyte in a lacuna Periosteum osteocyte 14. Several descriptions of bone structure are given below. Identify the structure involved by choosing the appropriate term from the key and placing its letter in the blank. Then, on the photomicrograph of bone on the right (210x), identify all structure: named in the key and bracket an osteon. Key: a. canaliculi b. central canal C. concentric lamellae d. lacunae e. matrix 1. layers of bony matrix around a central canal 2. site of osteocytes 3. longitudinal canal carrying blood vessels, lymphatics, and nerves 4. minute canals connecting osteocytes of an osteon 5. inorganic salts deposited in organic ground substance Ossification: Bone Formation and Growth in Length 15. Compare and contrast events occurring on the epiphyseal and diaphyseal faces of the epiphyseal plate. Epiphyseal face: Diaphyseal face