Patent foramen ovale, which is present in 27 percent of unselected adults, 16 is a vestige of the fetal circulation and results from failure of the primum and secundum septa to fuse postnatally ...

Learn more about Chiari malformation type 1, a rare brain condition that may be present in certain genes thanks to Neanderthals.

The occipital foramen, which is highly developed in both sexes, is larger in the female than the male, but the female index of prognathism is lower. The nasal index is higher in the female, being ...