Type of joint present between carpel and metacarpal of thumb is

Options

A. Saddle joint
B. Gliding joint
C. Hinge joint
D. Pivot joint

Answer

To determine the type of joint present between the carpal and metacarpal of the thumb, we can analyze the options provided and understand the characteristics of each type of joint.

### Step-by-Step Solution:

1. **Identify the Bones Involved**:
- The joint in question is between the carpal bone (specifically the trapezium) and the first metacarpal bone of the thumb.

2. **Understand the Functionality of the Joint**:
- The thumb has a unique range of motion that allows for opposition, which is the ability to touch the other fingers. This movement is crucial for grasping and holding objects.

3. **Evaluate the Options**:
- **Option 1: Saddle Joint**: This type of joint allows for movement in two planes (flexion/extension and abduction/adduction) and is characterized by the concave and convex surfaces that fit together. This is the joint type that allows the thumb to have its unique range of motion.
- **Option 2: Gliding Joint**: This joint allows for sliding movements between flat surfaces. It does not provide the range of motion seen in the thumb.
- **Option 3: Hinge Joint**: This joint allows for movement in one plane (like a door). It is not applicable to the thumb's carpal-metacarpal joint.
- **Option 4: Pivot Joint**: This joint allows for rotational movement, which is not the case for the thumb joint.

4. **Conclusion**:
- Given the analysis, the type of joint present between the carpal and metacarpal of the thumb is a **Saddle Joint**.

### Final Answer:
The correct answer is **Saddle Joint**.