Which of the following statements regarding joints is incorrect ?

Options

A. Shoulder joint is a type of ball and socket joint with synovial fluid .
B. Fibrous joints do not permit any movement .
C. Cartilaginous joint allows considerable free movement.
D. Saddle joint is present between the carpal and metacarpal of thumb.

Answer

To determine which statement regarding joints is incorrect, let's analyze each option one by one.

1. **Shoulder joint is a type of ball and socket joint with synovial fluid.**
- The shoulder joint is indeed a ball and socket joint, which allows for a wide range of motion. Synovial fluid is present in this joint, providing lubrication and reducing friction during movement.
- **Conclusion:** This statement is correct.

2. **Fibrous joints do not permit any movement.**
- Fibrous joints, such as those found in the skull, are characterized by their immobility. They are connected by dense connective tissue and do not allow movement.
- **Conclusion:** This statement is correct.

3. **Cartilaginous joints allow for free movement.**
- Cartilaginous joints, such as those found between the vertebrae, allow for limited movement. They provide flexibility but do not allow for free movement like synovial joints do.
- **Conclusion:** This statement is incorrect because cartilaginous joints do not allow for free movement; they allow for slight movement.

4. **Saddle joint is present between carpal and metacarpal of the thumb.**
- The saddle joint, which allows for a range of motion, is indeed located between the carpal bone (trapezium) and the first metacarpal bone of the thumb. This joint facilitates the thumb's ability to move in multiple directions.
- **Conclusion:** This statement is correct.

Based on the analysis, the incorrect statement is:

**Answer:** Cartilaginous joints allow for free movement.