Which one of the following bones is the only movable portion of the skull?
Correct answer: C. Mandible
- A. Maxilla
- B. Frontal bone
- C. Mandible
- D. Zygomatic
Explanation
The correct answer is the mandible. It is the only bone in the skull that moves, allowing for the opening and closing of the mouth, which is essential for chewing and speaking. The other options, such as the maxilla, frontal bone, and zygomatic bone, are part of the fixed structure of the skull and do not have independent movement.
This question appeared on the ETEA MDCAT 2019 paper, which you can sit online with every answer explained.
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About Human Skeleton
The human skeleton provides support, protects organs, enables movement with muscles and stores minerals while bone marrow produces blood cells. Questions cover the axial and appendicular skeleton, types of bones and joints, cartilage, ligaments and tendons, and the difference between fixed, slightly movable and freely movable joints.
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