In neuroanatomy, a gyrus (pl. gyri) is a ridge on the cerebral cortex. It is generally surrounded by one or more sulci (depressions or furrows; sg. sulcus). Gyri and sulci create the folded appearance of the brain in humans and other mammals.achygyria (meaning thick or fat gyri) is a congenital malformation of the cerebral hemisphere, resulting in unusually thick gyri in the cerebral cortex. Pachygyria is used to describe brain characteristics in association with several neuronal migration disorders; most commonly relating to lissencephaly.
Zhang Wei appears to be the most common full name in the world. This was stated in a Beijing News article, One Name 'Zhang Wei' Covers 290,000 People, 26 Jul 2007. Mohammed is the most common first name in the world. According to the sixth edition of The Columbia Encyclopedia (2000), Muhammad is probably the most common given name in the world, including variations. It is estimated that more than 15 million people in the world bear the name Muhammad.
Jack, Harry and Jacob were the runners-up among the most popular boys' names, and Olivia, Isla and Emily for girls. Characters from TV show Game Of Thrones have been inspiring some parents, with babies named Arya, Khaleesi and Tyrion.arper, the name David and Victoria Beckham chose for their daughter in 2011, has seen the largest rise in the girls' list. The name was 89th most popular in 2014 (up 3,636 places since 2004). The top 10 baby girls' names were: 1  Amelia.