Share Facebook Email Telegram WhatsApp Results #1. What is the primary function of the respiratory system ? Digestion Digestion Circulation Circulation Oxygenation Oxygenation Temperature regulation Temperature regulation #2. Which structure prevents food and liquids from entering the trachea during swallowing? Epiglottis Epiglottis Bronchi Bronchi Alveoli Alveoli Diaphragm Diaphragm #3. Where does gas exchange primarily occur in the respiratory system? Bronchi Bronchi Alveoli Alveoli Trachea Trachea Bronchioles Bronchioles #4. What is the role of cilia in the respiratory system? Gas Exchange Gas Exchange Mucus production Mucus production Filtration of Air Filtration of Air Oxygen transport Oxygen transport #5. Which muscle is primarily responsible for breathing at rest? Rectus abdominis Rectus abdominis Diaphragm Diaphragm Intercostal muscles Intercostal muscles Quadriceps Quadriceps #6. Which gas is transported by hemoglobin in red blood cells? Oxygen Oxygen Carbon dioxide Carbon dioxide Nitrogen Nitrogen Hydrogen Hydrogen #7. What is the term for the process of breathing out all from the lungs? Inhalation Inhalation Exhalation Exhalation Respiration Respiration Ventilation Ventilation #8. Which respiratory disorder is characterized by inflammation and narrowing of the airways? Pneumonia Pneumonia Asthma Asthma Bronchitis Bronchitis Emphysema Emphysema #9. What is the purpose of surfactant in the alveoli? Gas exchange Gas exchange Preventing collapse Preventing collapse Filtration Filtration Mucus production Mucus production #10. Where does the process of external respiration occur? Lungs Lungs Nose Nose Trachea Trachea Pharynx Pharynx Finish