Find the mismatch from the following pairs.

Options

A. Joint between carpel and metacarpal of thumb - Gliding joint
B. Joint between humerus and pectoral girdle - Ball and socket joint .
C. Hinge joint - joint in the elbows
D. Joint between atlas and axis - pivot joint

Answer

To solve the question of finding the mismatch from the given pairs, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Identify the Joint between Carpal and Metacarpal of Thumb:**
- The joint between the carpal (specifically the trapezium bone) and the metacarpal of the thumb is known as the **carpometacarpal joint**.
- The statement claims it is a **gliding joint**, which is incorrect. The carpometacarpal joint of the thumb is actually a **saddle joint** that allows for a wide range of motion.

**Hint:** Remember the types of joints and their specific locations. The carpometacarpal joint of the thumb is unique and allows for more movement than a typical gliding joint.

2. **Joint between Humerus and Pectoral Girdle:**
- This joint is known as the **shoulder joint**, which is classified as a **ball and socket joint**.
- The statement correctly identifies this as a ball and socket joint, allowing for a wide range of motion.

**Hint:** Ball and socket joints are characterized by a rounded surface fitting into a depression, allowing movement in multiple directions.

3. **Hinge Joint:**
- Hinge joints allow movement in one plane and are exemplified by the **elbow joint**.
- The statement correctly identifies the elbow as a hinge joint.

**Hint:** Hinge joints function like a door, allowing movement back and forth in one direction.

4. **Joint between Atlas and Axis:**
- The joint between the first cervical vertebra (atlas) and the second cervical vertebra (axis) is known as a **pivot joint**.
- The statement correctly identifies this joint as a pivot joint, allowing for rotational movement.

**Hint:** Pivot joints allow for rotation around a single axis, like the rotation of your head.

### Conclusion:
The mismatch in the pairs is the first option, where the joint between the carpal and metacarpal of the thumb is incorrectly identified as a gliding joint instead of the correct classification as a saddle joint.

**Final Answer:** The mismatch is the first option (joint between carpal and metacarpal of the thumb is incorrectly labeled as a gliding joint).