A synovial cavity is found in ......................... joint.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of joint that contains a synovial cavity.

2. **Definition of Synovial Cavity**: A synovial cavity is a fluid-filled space that exists within certain types of joints in the body. This cavity is crucial for joint movement and lubrication.

3. **Identifying Synovial Joints**: Synovial joints are the specific type of joints that contain a synovial cavity. They are characterized by the presence of a synovial membrane and synovial fluid.

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