MCQ on Respiratory SystemBy admin / August 1, 2025 Get Ready Time Up Respiratory System Test your knowledge on Respiratory System of human body 1 / 10 Which structure is commonly known as the windpipe? Bronchus Larynx Trachea Pharynx 2 / 10 What is the primary function of the respiratory system? To regulate body temperature To facilitate gas exchange To filter the air To transport oxygen to the tissues 3 / 10 Which of the following diseases is primarily caused by a bacterial infection in the lungs? Asthma Pneumonia Tuberculosis Emphysema 4 / 10 What is the role of the epiglottis in the respiratory system? To warm the air To help produce sound To filter air To prevent food from entering the windpipe 5 / 10 Which of the following is the site of gas exchange in the lungs? Trachea Alveoli Bronchioles Bronchi 6 / 10 What is the function of cilia in the respiratory system? To produce mucus To exchange gases To increase surface area To trap and move particles 7 / 10 The diaphragm is primarily responsible for what? Protecting the lungs Breathing movements Air filtration Expelling carbon dioxide 8 / 10 What is the main gas exchanged in the respiratory system? Nitrogen Hydrogen Carbon monoxide Oxygen and carbon dioxide 9 / 10 Which of the following is a common symptom of asthma? Swelling of the joints Rash Fever Shortness of breath 10 / 10 Which part of the brain regulates the rate and depth of breathing? Cerebellum Hypothalamus Thalamus Medulla oblongata Your score isThe average score is 70% 0% Restart quiz
