Cyclists wear a helmet to protect their head from injuries. The skull functions in the same way as a helmet and it serves to protect the brain. However, unlike a helmet, the skull is made of many smaller bones. Which kind of joint do you think keeps those smaller bones intact?

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Solution

The human skull is made up of smaller bones which are held together by fixed joints. These joints allow no or very little room for movement. In humans, these fixed joints are the structural supports that build our face.

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Part of the skull that protects the brain is made up of ____ bones.

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Q. Raman was wondering why bones in his skull cannot move the same way his elbow bends. Identify the correct reason for that.
[1 mark]

A. Bones of the skull have ball and socket joints.
B. Bones of the skull have fixed joints.
C. Bones of the skull have hinge joints.
D. Bones of the skull have pivot joint.

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