AsterQuiz Breath Basics QuizOnline version Respiratory basics by Alejadra Sánchez 1 What is the main function of the respiratory system? a Exchange oxygen and carbon dioxide. b Exchange of blood and carbon dioxide. c breathe 2 What is the main organ of the respiratory system? a the heart b The lungs. c the nose 3 Where does air normally enter the body? a eyes b mouth c the nose 4 What structure connects the nose to the. a larynx b neck c lungs 5 Which organ contains the vocal cords? a The larynx b The pharynx. c The trachea. 6 Which lung has three lobes? a The left lung. b The right lung. c heart 7 Where does gas exchange primarily occur? a In the pulmonary alveoli. b bronchi c atmosphere
