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1. Which of the following reduces activity of Osteoclasts?
- Adrenalin
- Noradrenalin
- Calcitonon
- Calmodulin
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2. Where are Osteoprogenitor cells located?
- Periosteum, Endosteum & ECM
- Periosteum only
- Periosteum & Endosteum only
- Endosteum only
3. Which of the following best describes the appearance of Osteoblasts in adults?
- Slender, fibrocyte-like cells with low activity
- Large, round cells with high activity
- Slender, fibrocyte-like cells with high activity
- Large, round cells with low activity
4. True or false: the outer surface of cortical bone is covered by periosteum and the inner layer is lined by the endosteum?
5. The lamellar tissue that makes up cortical bone is arranged in Haversian Systems/Osteons. What are Osteons?
- Parallel cylindrical units composed of central 'Haversion canals' surrounded by concentric osetoblasts
- Parallel cylindrical units composed of central 'Haversion canals' surrounded by concentric osetocytes
- Parallel cylindrical units composed of central 'Volkmann's canals' surrounded by concentric osetocytes
- Parallel cylindrical units composed of central 'Volkmann's canals' surrounded by concentric osetoblasts
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