The characteristics and an example of a symbol joint in humans is
`{:(,"Characterstics","Example"),((a),"Lymph filled between two bones, limited movement","Gliding joint between carpals"),((b),"Fluid cartilage between two bones, limited movements","Knee joint"),((c),"Fluid filled between two joints, provides cushion","Skull bones"),((d),"Fluid filled synovial cavity between two bones","Joint between atlas and axis"):}`

Options

A. fluid filled synovial cavity between two bones joint between atlas and axis
B. lymph filled between two bones, limited movement gliding joint between carpals
C. fluid, cartilage between two bones, limited knee joint
D. fluid filled between two joint, provides cushion skull bones

Answer

To solve the question regarding the characteristics and examples of a synovial joint in humans, we will analyze each option provided:

1. **Option (a)**: "Lymph filled between two bones, limited movement" - Example: "Gliding joint between carpals"
- **Analysis**: Gliding joints are indeed synovial joints, which contain synovial fluid, not lymph. Therefore, this option is incorrectly matched.

2. **Option (b)**: "Fluid cartilage between two bones, limited movements" - Example: "Knee joint"
- **Analysis**: The knee joint is a hinge joint, which is a type of synovial joint. It contains synovial fluid, not fluid cartilage. Hence, this option is also incorrectly matched.

3. **Option (c)**: "Fluid filled between two joints, provides cushion" - Example: "Skull bones"
- **Analysis**: Skull bones are connected by fibrous joints (sutures), which do not contain fluid. Therefore, this option is incorrectly matched.

4. **Option (d)**: "Fluid filled synovial cavity between two bones" - Example: "Joint between atlas and axis"
- **Analysis**: The joint between the atlas and axis is a pivot joint, which is a type of synovial joint. It does indeed have a fluid-filled synovial cavity. Therefore, this option is correctly matched.

**Conclusion**: The correct answer is option (d): "Fluid filled synovial cavity between two bones" with the example being "Joint between atlas and axis".

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