Assertion: The joint between the atlas and axis is an example of gliding joint.
Reason: Gliding joint allows movement primarily in one plane.

Options

A. If both assertion and reason are ture and reason is the corect explanation of assertion
B. If both assertion and reason are ture but reson is not the correct explanation of assertion
C. If assertion is true reason is false
D. If both assertion and reason are false

Explanation

To solve the assertion and reason question, we need to analyze both statements carefully.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "The joint between the atlas and axis is an example of a gliding joint."
- The atlas (C1) and axis (C2) are the first two cervical vertebrae in the spine.

2. **Identifying the Type of Joint**:
- The joint between the atlas and axis is known as a pivot joint, not a gliding joint.
- A pivot joint allows for rotational movement, which is essential for the head's ability to turn from side to side.

3. **Understanding the Reason**:
- The reason states that "Gliding joints allow movement primarily in one plane."
- This statement is incorrect because gliding joints (also known as plane joints) allow for limited movement in multiple directions, not just one plane.

4. **Conclusion**:
- Since the assertion is false (the joint is a pivot joint, not a gliding joint) and the reason is also false (gliding joints allow movement in multiple directions), both statements are incorrect.
- Therefore, the correct answer is that both the assertion and reason are false.

### Final Answer:
Both the assertion and reason are false.