Matrix of cartilage is secreted by

Options

A. Chondrocytes
B. Chondroblasts
C. Osteocytes
D. Histiocytes.

Answer

**Step-by-Step Text Solution:**

1. **Understanding Cartilage**: Cartilage is a type of connective tissue that is softer and more flexible than bone. It is often referred to as "gristle."

2. **Location of Cartilage**: In vertebrates, cartilage is most abundantly found in embryos. As the organism matures, this cartilage can undergo a process called ossification, where it is converted into bone.

3. **Components of Cartilage**: The structure of cartilage consists of two main components: the cells that make up the cartilage and the ground matrix, which is the material that surrounds the cells.

4. **Types of Cells in Cartilage**:
- **Chondroblasts**: These are the immature cells that are responsible for the formation of cartilage. They are metabolically active and play a crucial role in the initial development of cartilage.
- **Chondrocytes**: These are the mature cells that arise from chondroblasts. They are larger and more rounded in shape and are responsible for secreting the cartilage matrix.

5. **Identifying the Correct Cell Type**: The question asks which cells secrete the matrix of cartilage. Since chondrocytes are the mature cells that secrete the matrix, they are the correct answer.

6. **Excluding Other Cell Types**:
- **Osteocytes**: These are bone-forming cells and are not involved in cartilage formation.
- **Histiocytes**: These are tissue-associated cells and do not secrete cartilage matrix.

7. **Conclusion**: Therefore, the matrix of cartilage is secreted by chondrocytes.

**Final Answer**: The matrix of cartilage is secreted by chondrocytes.

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