Ball and socket joint is a___joint.

Answer

**Step-by-Step Solution:**

1. **Identify the Type of Joint**: The question asks about the classification of a ball and socket joint.

2. **Define Ball and Socket Joint**: A ball and socket joint is characterized by a spherical head of one bone fitting into a cup-like socket of another bone. This structure allows for a wide range of motion.

3. **Classify the Joint**: The ball and socket joint is classified as a **synovial joint**. Synovial joints are characterized by the presence of a synovial cavity, which allows for free movement between the articulating bones.

4. **Explain the Movement**: In a ball and socket joint, the distal bone can move around multiple axes, which allows for movements in various directions, such as flexion, extension, rotation, and circumduction.

5. **Provide an Example**: A common example of a ball and socket joint is the articulation between the femur (thigh bone) and the pelvic girdle, where the head of the femur fits into the acetabulum of the pelvis.

6. **Conclude the Answer**: Therefore, the answer to the question is that a ball and socket joint is a **synovial joint**.

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