Articular cartilage of synovial joint is

Options

A. fibrocartilage
B. elastic cartilage
C. hyaline cartilage
D. all of these

Answer

**Step-by-Step Solution:**

1. **Understanding Articular Cartilage**: Articular cartilage is a type of cartilage that covers the surfaces of bones at a synovial joint. It provides a smooth, lubricated surface for articulation and facilitates the movement of the joint.

2. **Identifying the Types of Cartilage**: The question provides four options regarding the type of cartilage that makes up the articular cartilage in synovial joints:
- Fibrocartilage
- Elastic cartilage
- Hyaline cartilage
- All of these

3. **Analyzing Synovial Joints**: Synovial joints are characterized by a joint cavity filled with synovial fluid, which helps reduce friction between the articulating surfaces. The surfaces of the bones in these joints are covered by articular cartilage.

4. **Determining the Correct Type of Cartilage**:
- **Fibrocartilage**: This type of cartilage is found in areas that require support and tensile strength, such as intervertebral discs and the menisci of the knee, but it is not the primary cartilage found in articular surfaces of synovial joints.
- **Elastic Cartilage**: This type of cartilage is more flexible and is found in structures like the ear and epiglottis, but it is not present in synovial joints.
- **Hyaline Cartilage**: This is the type of cartilage that is predominantly found in articular surfaces of synovial joints. It provides a smooth surface for joint movement and helps absorb shock.

5. **Conclusion**: Based on the analysis, the correct answer to the question is that the articular cartilage of synovial joints is primarily **hyaline cartilage**.

**Final Answer**: The articular cartilage of synovial joints is hyaline cartilage (Option 3).

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