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What is the parietal ridge?

  1. The narrowest area of the head

  2. The area that has the most hair growth

  3. The widest area of the head

  4. The area just above the neck

The correct answer is: The widest area of the head

The parietal ridge is the widest area of the head, located in the central portion between the temples and the occipital ridge. This area includes the parietal bones, which make up a significant portion of the cranial vault. Options A, B, and D are incorrect because they do not accurately describe the parietal ridge. The narrowest area of the head may be the front hairline or the nape of the neck, depending on the individual's head shape. The area with the most hair growth may vary for each person, as some may have thicker hair in the front or back of their head. The area just above the neck would be better described as the occipital ridge, which is a separate bony prominence.