Question

Which ribs show bucket handle type of movement?
A. Ribs 12
B. Ribs 35
C. Ribs 7-10
D. Ribs 11-12

Answer 1

Hint: In total, the rib cage contains 12 thoracic vertebrae and the 24 ribs, including the sternum.
Bucket-handle is a type of movement of ribs that results in change in crosswise width of the thorax.

Complete answer:
To better understand the question and answer correctly, we will learn about rib cage and ribs.
The vertebral column is made by 26 consecutively arranged parts called vertebrae and it is dorsally placed. It consists of 12 pairs of ribs, that is, 24 ribs. Each rib is a slim curved bone, articulated in pairs to the spine, which are all connected dorsally to the vertebral column and ventrally to the sternum.
At the time of inspiration, the crosswise width of the thorax is increased by the ribs wavering outward. This is nothing but the bucket-handle type of rib movement. The seventh to tenth ribs are the ones primarily involved in this movement. Whereas at the time of expiration, the elastic retreat of the lungs and the weight of the thoracic walls result in the crosswise and anteroposterior diameters of the thorax to return to the relaxed position.

So, the correct answer to the question is Ribs 7-10.

Note:
The anteroposterior movement of the chest looks a lot like pump handle movement. So, it is termed as the pump handle movement of ribs.