Question

The ribcage and the cranium both protect internal organs.However,the bonesof the ribcage can move,wheras those of the cranium cannot. What are the advantages of movement of ribs and lackof movement in cranium

Answer 1

Dear Student,

The rib cage is the skeleton of the chest it protects and encloses the organs of the thoracic cavity, including the heart and lungs. The advantage of movement of rib cage is that it can be large or small with the need for oxygen and change in the volume of the rib cage enables breathing,
The cranium bones protect the brain and advantage of lack of the movement provides mechanical advantages such as reduction in friction and can bear shock and prevents injury.

Thank You!