Movable joints are called

Options

A. Fibrous joints
B. Symphyses
C. Synovial joints
D. Cartilaginous joints.

Answer

**Step-by-Step Solution:**

1. **Understanding Joint Classification**: Joints in the human body are classified into three main categories based on their movement capabilities: immovable joints, slightly movable joints, and freely movable joints.

2. **Identifying Joint Types**:
- **Immovable Joints**: These joints do not allow any movement. An example includes fibrous joints, such as those found in the skull or between the teeth and jaw.
- **Slightly Movable Joints**: These joints allow limited movement and are known as cartilaginous joints. Examples include the intervertebral discs in the spine and the pubic symphysis.
- **Freely Movable Joints**: These joints allow a wide range of motion and are referred to as synovial joints. Examples include hinge joints (like the elbow) and ball-and-socket joints (like the shoulder).

3. **Evaluating the Options**:
- **Fibrous Joints**: These are immovable joints, so this option is incorrect.
- **Synphysis**: This refers to a type of cartilaginous joint, which is slightly movable, making this option incorrect as well.
- **Synovial Joints**: These are the joints that are freely movable, thus this option is correct.
- **Cartilaginous Joints**: These are also slightly movable, so this option is incorrect.

4. **Conclusion**: After evaluating all the options, we conclude that movable joints are called **synovial joints**.

**Final Answer**: Movable joints are called **synovial joints**.

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