During those years, the United States evolved from a new nation fighting Great Britain for independence (1775â83), through the monumental American Civil War (1861â65) and, after collaborating in triumph during World War II (1941â45), to the world's sole remaining superpower from the late 20th century to present.
Tracheotomy (US /ËtreÉªkiËÉtÉmi/ tray-kee-AW-tÉ-mee) is a surgical procedure which consists of making an incision on the anterior aspect of the neck and opening a direct airway through an incision in the trachea (windpipe).
A tracheostomy is an opening cut into the windpipe, or trachea. It is used as an airway for breathing. After the opening is made, a small tube is inserted to let air in, and to attach a breathing machine (mechanical ventilator) if needed.