Human Respiratory SystemOnline version Test your knowledge about the human respiratory system with this fun quiz! by Mubasher Hassan 1 What is the primary function of the human respiratory system? a To produce hormones. b To facilitate gas exchange. c To circulate blood. d To digest food. 2 Which part of the respiratory system is responsible for gas exchange? a Alveoli. b Bronchi. c Larynx. d Trachea. 3 Windpipe is also called a Trachea b Thorax c Bronchi d Alveoli 4 The process of breathing in is called a Inhalation b Diffusion c Exhalation d Digestion 5 What is the term for the tiny hair-like structures that help clean the airways? a Microvilli. b Pseudopodia. c Flagella. d Cilia. 6 What gas do humans primarily inhale? a Hydrogen. b Carbon dioxide. c Oxygen. d Nitrogen. 7 During inhalation, diaphragm moves a Left b Down c Up d Right 8 What is the process of breathing out called? a Ventilation. b Exhalation. c Respiration. d Inhalation. 9 Which part of the respiratory system connects the throat to the lungs? a Bronchi. b Trachea. c Esophagus. d Alveoli. 10 What is the primary gas expelled during exhalation? a Nitrogen. b Helium. c Carbon dioxide. d Oxygen. 11 What is correct passage of air during inhalation a Nose -> Lungs -> Trachea -> Alveoli b Nose -> Trachea -> Lungs -> Alveoli c Nose -> Larynx -> Trachea -> Alveoli d Nose -> Alveoli -> Trachea -> Larynx 12 Trachea is divided into two tubes which are called a Alveoli b Bronchi c Larynx d Esophagus 13 Bronchi are divided into smaller tubes which are called a Windpipe b Hemoglobin c Alveoli d Bronchioles 14 What is the name of organ marked as 1 a Nasal Cavity b Thorax c Larynx d Trachea 15 What is the name of organ marked as 2 a Bronchiole b Larynx c Pharynx d Esophagus 16 What is the name of organ marked as 3 a Alveoli b Larynx c Trachea d Nasal Cavity
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