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.
Pixland/Pixland/Getty Images. A tracheostomy is a surgical opening through the neck and into the trachea, usually necessary after trauma, disease or surgery. As a result, a permanent hole, or stoma, remains as the orifice through which the person breathes. A tracheostomy tube fits inside the stoma and is secured to the patientâs neck with a tube harness, and may be used by some patients who have trouble with secretion build-up in the trachea. If needed, oxygen therapy can be delivered directly through the stoma or tracheostomy tube.