How many plates of bone is the cranium made up of?

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Study for the City and Guilds Dental Nursing Block 2 Test. Use flashcards and multiple choice questions, each with hints and explanations, to prepare effectively. Get ready for your exam!

Multiple Choice

How many plates of bone is the cranium made up of?

Explanation:
The cranium is the protective case around the brain, and in many dental nursing references it’s described as being formed by six flat bones that make up the cranial vault: the frontal bone at the forehead, the two parietal bones on the top and sides, the two temporal bones at the temples, and the occipital bone at the back. The sphenoid and ethmoid bones are located more toward the base of the skull and contribute to the cranial base rather than the vault itself, so they aren’t counted among those six. That’s why six is the correct count.

The cranium is the protective case around the brain, and in many dental nursing references it’s described as being formed by six flat bones that make up the cranial vault: the frontal bone at the forehead, the two parietal bones on the top and sides, the two temporal bones at the temples, and the occipital bone at the back. The sphenoid and ethmoid bones are located more toward the base of the skull and contribute to the cranial base rather than the vault itself, so they aren’t counted among those six. That’s why six is the correct count.

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