The joint between atlas and axis is called

Options

A. Angular joint
B. Hinge joint
C. Pivot joint
D. Saddle joint

Answer

**Step-by-Step Solution:**

1. **Identify the Bones Involved**: The question asks about the joint between the atlas and the axis. The atlas is the first cervical vertebra, and the axis is the second cervical vertebra.

2. **Understand the Structure of the Vertebral Column**: The vertebral column is divided into several parts: cervical, thoracic, lumbar, sacral, and caudal. The cervical region consists of seven vertebrae.

3. **Naming the Specific Vertebrae**: The first cervical vertebra is called the atlas, and the second is called the axis. The atlas is also known as the "yes" bone because it allows nodding of the head, while the axis is referred to as the "no" bone due to its role in allowing head rotation.

4. **Determine the Type of Joint**: The joint between the atlas and axis allows for rotational movement. This type of joint is classified as a pivot joint.

5. **Select the Correct Option**: Given the options (angular joint, hinge joint, pivot joint, saddle joint), the correct answer is the pivot joint, which is the joint that exists between the atlas and axis.

**Final Answer**: The joint between the atlas and axis is called the **pivot joint**.

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