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 part of the brain regulates the rate and depth of breathing? Cerebellum Medulla oblongata Hypothalamus Thalamus 2 / 10 What is the main gas exchanged in the respiratory system? Nitrogen Oxygen and carbon dioxide Carbon monoxide Hydrogen 3 / 10 What is the primary function of the respiratory system? To facilitate gas exchange To filter the air To transport oxygen to the tissues To regulate body temperature 4 / 10 What is the function of cilia in the respiratory system? To increase surface area To exchange gases To produce mucus To trap and move particles 5 / 10 The diaphragm is primarily responsible for what? Protecting the lungs Breathing movements Air filtration Expelling carbon dioxide 6 / 10 Which of the following diseases is primarily caused by a bacterial infection in the lungs? Pneumonia Emphysema Tuberculosis Asthma 7 / 10 What is the role of the epiglottis in the respiratory system? To prevent food from entering the windpipe To filter air To help produce sound To warm the air 8 / 10 Which structure is commonly known as the windpipe? Larynx Pharynx Bronchus Trachea 9 / 10 Which of the following is a common symptom of asthma? Swelling of the joints Rash Fever Shortness of breath 10 / 10 Which of the following is the site of gas exchange in the lungs? Alveoli Bronchioles Trachea Bronchi Your score isThe average score is 68% 0% Restart quiz
