Trachea to prevent swallowed matter from entering the trachea. In the fourth week of development of the human embryo as the respiratory bud grows, the trachea separates from the foregut through the formation of tracheoesophageal ridges which fuse to form the tracheoesophageal septum and this separates the future trachea from the oesophagus and divides the foregut tube into the laryngotracheal tube. Before the end of the fifth week, the trachea begins to develop from the laryngotracheal tube which develops from the laryngotracheal groove. The first part of the cephalic region of the tube forms the larynx, and the next part forms
United We Stand: What More Can I Give this was because Jackson signed a contract with CBS (the former owner of his record label) over the 30th Anniversary Special to not appear under his name in any other program; the airing of "Man in the Mirror" at an awards ceremony was also canceled. John Stamos hosted the event, and appearances were also made by celebrities including Kevin Spacey along with political figures such as the mayor of Washington, D.C.. United We Stand: What More Can I Give United We Stand: What More Can I Give was a benefit concert led by Michael Jackson held on October 21, 2001