Bucket-handle movement is seen in

Options

A. Ribs 1-2
B. Ribs 3-5
C. Ribs 6-10
D. Ribs 11-12.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the "bucket-handle movement" and where it is observed.

2. **Identifying the Context**: The bucket-handle movement is related to the respiratory process, particularly during inhalation (inspiration).

3. **Explaining Inspiration**: During inspiration, the rib cage expands to allow air to enter the lungs. This expansion involves the movement of the ribs.

4. **Focusing on Specific Ribs**: The ribs that are primarily involved in this bucket-handle movement are the 6th to 10th ribs. These ribs move more significantly compared to others during the inhalation process.

5. **Describing the Movement**: The movement of the 6th to 10th ribs resembles that of a bucket handle. When these ribs elevate, they move around two axes, which contributes to the expansion of the rib cage.

6. **Conclusion**: Therefore, the bucket-handle movement is specifically seen in the 6th to 10th ribs during the process of respiration.

**Final Answer**: The bucket-handle movement is seen in the 6th to 10th ribs during inspiration.

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