Wikipedia:Picture of the day/October 2008 | october 31 - fri

October 31 - Fri

Wormian bones
Wormian bones are irregular isolated bones in the skull. Here, we see a human skull with Wormian bones (in yellow) compared to a normal skull on the left. They have a tendency to be more or less symmetrical on the two sides of the skull, and vary in size. Their number is generally limited to two or three, but more than a hundred have been found in the skull of an adult hydrocephalic subject.Image credit: Mariana Ruiz

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