Which one of the following options is incorrect?

Options

A. Hinge joint- between Humerus and Pectoral girdle
B. Pivot joint- between atlas, axis and occipital condyle
C. Gliding joint - between the carpals
D. Saddle joint - between carpals and metacarpals of thumb

Explanation

To determine which option is incorrect regarding the types of joints, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the First Option**:
- The first option states that a hinge joint is found between the humerus and the pectoral girdle.
- **Analysis**: This is incorrect because the joint between the humerus and the pectoral girdle is a ball and socket joint, not a hinge joint. The ball and socket joint allows for a greater range of motion.

2. **Identify the Second Option**:
- The second option states that a pivot joint is found between the atlas and the axis and the occipital condyle.
- **Analysis**: This option is correct. The pivot joint allows for rotation and is indeed found between these vertebrae.

3. **Identify the Third Option**:
- The third option states that a gliding joint is found between the carpals.
- **Analysis**: This option is also correct. Gliding joints are present between the carpal bones, allowing for slight movements.

4. **Identify the Fourth Option**:
- The fourth option states that a saddle joint is found between the carpals and the metacarpal of the thumb.
- **Analysis**: This option is correct as well. The saddle joint allows for angular movement and is specifically found between the carpals and the first metacarpal.

5. **Conclusion**:
- The incorrect option is the **first option**, which incorrectly identifies the type of joint between the humerus and the pectoral girdle.

### Final Answer:
The incorrect option is the **first option**: "Hinge joint between the humerus and pectoral girdle."