Ankle joint is

Options

A. Pivot joint
B. Ball and socket joint
C. Hinge joint
D. Gliding joint.

Answer

To determine the type of joint that the ankle joint is, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Ankle Joint**:
- The ankle joint is a crucial joint in the human body that connects the foot to the leg.

2. **Understand Joint Types**:
- There are several types of joints in the human body, including:
- Pivot joints
- Ball and socket joints
- Hinge joints
- Gliding joints

3. **Determine the Function of the Ankle Joint**:
- The primary function of the ankle joint is to allow for dorsiflexion and plantarflexion movements, which are essential for walking, running, and jumping.

4. **Classify the Ankle Joint**:
- Upon examining the movement allowed by the ankle joint, it is classified as a **hinge joint**. Hinge joints allow movement in one plane, similar to the way a door opens and closes.

5. **Eliminate Incorrect Options**:
- **Pivot Joint**: Allows for rotational movement; found in the neck (e.g., between the first and second cervical vertebrae).
- **Ball and Socket Joint**: Allows for multi-directional movement; found in the shoulder and hip joints.
- **Gliding Joint**: Allows for sliding movements; found in the wrist and between the vertebrae.

6. **Conclusion**:
- Based on the above analysis, the ankle joint is classified as a **hinge joint**.

### Final Answer:
The ankle joint is a **hinge joint**.

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