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A lacuna of bone contains osteocyte...

A lacuna of bone contains _________ osteocyte

A

Two

B

Many

C

Two pairs

D

One

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Text Solution:** 1. **Understanding the Question**: The question asks how many osteocytes are contained in a lacuna of bone. 2. **Defining Key Terms**: - **Lacuna**: These are small spaces found between the lamellae (the concentric rings of the bone's extracellular matrix). - **Osteocyte**: These are the mature bone cells that reside within the lacunae. 3. **Structure of Bone**: - Bone is a type of connective tissue, and its basic structural unit is called the osteon or Haversian system. - The Haversian system consists of several components: - **Lamellae**: Concentric rings of extracellular matrix. - **Lacunae**: Small spaces between the lamellae that house osteocytes. - **Canaliculi**: Tiny canals that connect lacunae and allow for nutrient exchange. - **Haversian Canal**: The central canal that contains blood vessels and nerves. 4. **Identifying the Number of Osteocytes in Lacunae**: - Each lacuna contains only one osteocyte. This is a critical point to note as it directly answers the question. 5. **Conclusion**: Therefore, a lacuna of bone contains **one osteocyte**. **Final Answer**: A lacuna of bone contains **one osteocyte**. ---
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