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Bone Tissue

Osteocytes Practice Questions

20 free Osteocytes practice questions for the Histology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Osteocytes questions

20 questions
  1. Q1. Which of the following describes the primary developmental origin of an osteocyte?
  2. Q2. In mature compact bone, where are the cell bodies of osteocytes located?
  3. Q3. What is the primary function of the canaliculi in bone tissue?
  4. Q4. Osteocytes communicate with neighboring cells via which type of junction?
  5. Q5. Which of the following is considered the most significant functional role of the osteocyte in adult bone?
  6. Q6. Compared to osteoblasts, osteocytes generally show which histological characteristic?
  7. Q7. What is the biological significance of 'pericellular fluid' within the lacuno-canalicular system?
  8. Q8. The process where osteocytes remove a small amount of surrounding matrix to regulate systemic calcium levels is called:
  9. Q9. Which protein, specifically secreted by osteocytes, acts as a potent inhibitor of bone formation by osteoblasts?
  10. Q10. What happens to osteocytes when the surrounding bone tissue is no longer supplied with blood (e.g., in a fracture)?
  11. Q11. Under electron microscopy, the space between the osteocyte plasma membrane and the lacunar wall is termed the:
  12. Q12. Osteocytes represent approximately what percentage of all cells in mature bone tissue?
  13. Q13. Which hormone is known to increase the rate of osteocytic osteolysis to raise blood calcium?
  14. Q14. The 'half-life' of an osteocyte can be as long as:
  15. Q15. In a histological section of bone, the radiating appearance of canaliculi is often compared to:
  16. Q16. Which enzyme, also found in osteoclasts, is expressed by osteocytes during matrix remodeling of the lacunar walls?
  17. Q17. Mechanical unloading of bone (e.g., in spaceflight) leads to which change in osteocyte signaling?
  18. Q18. The total surface area of the lacuno-canalicular system is estimated to be:
  19. Q19. During the transition from osteoblast to osteocyte, which of the following occurs?
  20. Q20. Which of the following describes the 'osteocyte apoptotic body' function during bone remodeling?