Name _________________. Overview. In this activity, you will study the effects of gravity on the planets of the Solar System. First, you need to view movies from the lunar Apollo missions, then calculate your weight on other planets. Finally, you will propose your weight on newly discovered planets around other stars.
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.
What is a tracheostomy? A tracheostomy is the surgical creation of a stoma (hole) in the front of the neck and through the trachea (windpipe). A tube is usually placed in the opening. The tube provides an airway and access to remove lung secretions and excess mucus.