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 is a procedure where a hole is made in the windpipe (trachea) and a tube inserted to aid with breathing. This keeps the airways open but can also remove any excess fluids produced by the lungs. A tracheostomy is often performed in an emergency.