our ribcage is not a very rigid structure. why is it not rigid?
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Answered by
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Because to help in the movement of the lungs, beating of heart. The main reason is that it is helping the lungs to move in and out during the process of respiration. That is why our ribcage is not rigid. Hope this answer helps u and plz mark this answer as a brainlist answer.
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ANSWER:
Ribcage is not rigid, they are made of soft tissue named as intercostal muscles and costal cartilage.
EXPLANATION:
Ribcage forms the framework protecting our lung heart and other major organs. It has the function of also providing support as part of skeleton and breathing would be difficult without the ribcage.
The ribcage is made of cartilage bone. The cartilage portion meet in front at the long, flat three bone plate called sternum. Rib pairs form seven true ribs because they are attached to sternum. Rib pairs of eight to ten are called as false rib, attach indirectly though cartilage structure.
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