First Aid Contest Exam From the 2010 Southwest Regional First Aid Contest, Carlsbad, NM Progress Indicator: Question 1 of 30 1.  The Respiratory System consists of: Choices: Trachea, lungs, mouth, nose, cilia Lungs, mouth, associated muscles, nose Nose, cilia, mouth, lungs, trachea Nose, mouth , trachea, lungs, associated muscles