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.
A tracheostomy (trach) tube is a small tube inserted into the tracheostomy to keep the stoma (opening) clear. Tracheostomy tubes are available in several sizes and materials including semi-flexible plastic, rigid plastic or metal. The tubes are disposable or reusable. They may have an inner cannula that is either disposable or reusable.