Answer the questions by seeing the image in attachments-
a.Identify the bony structure present in the chest region.
b.Why are the last two pairs of this structure called as floating ribs?
c.What is the function of the above structure?
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ribcage...
The last two pairs of ribs at the very bottom of the rib cage do not attach to the sternum at all. These ribs are referred to as "floating ribs" as their only attachment is found at the back of the rib cage, anchored to the vertebrae of the spine.
The ribs are the bony framework of the thoracic cavity. The ribs form the main structure of the thoracic cage protecting the thoracic organs, however their main function is to aid respiration. There are twelve pairs of ribs. Each rib articulates posteriorly with two thoracic vertebrae by the costovertebral joint.
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