Respiratory System Quiz
Test your knowledge of the Respiratory System
Quiz Information
Description:
Assess your understanding of the respiratory tract and gas exchange.
Instructions:
- Read each question carefully before selecting your answer.
- Each question has one correct answer.
- You will receive immediate feedback after answering each question.
- Your final score will be displayed at the end of the quiz.
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This quiz will test your understanding of the Respiratory System system anatomy. Make sure you're ready to begin!
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Q1: What is the main component of exhaled air?
- Oxygen
- Carbon monoxide
- Carbon dioxide
- Nitrogen
Q2: What is dyspnea?
- No breathing
- Labored or difficult breathing
- Fast breathing
- Normal breathing
Q3: Which condition involves inflammation of the bronchi?
- Pneumonia
- Bronchitis
- Emphysema
- Asthma
Q4: Which structure marks the start of the lower respiratory tract?
- Nasal cavity
- Pharynx
- Larynx
- Mouth
Q5: What is the Adam’s apple anatomically?
- Pharynx
- Laryngeal prominence
- Cricoid cartilage
- Thyroid gland
Q6: What happens to the diaphragm during inhalation?
- It contracts and moves downward
- It relaxes and rises
- It becomes paralyzed
- It thickens
Q7: Which volume is the air left in lungs after maximal exhalation?
- Tidal volume
- Inspiratory reserve volume
- Expiratory reserve volume
- Residual volume
Q8: Which gas is removed from the blood during exhalation?
- Nitrogen
- Oxygen
- Carbon dioxide
- Hydrogen
Q9: What is hyperventilation?
- Slow, shallow breathing
- Increased rate and depth of breathing
- Temporary cessation of breathing
- Difficulty exhaling
Q10: Which lung has three lobes?
- Left
- Right
- Both
- Neither
Q11: Which structure warms and moistens air?
- Esophagus
- Lungs
- Nasal cavity
- Epiglottis
Q12: Which tube carries both food and air?
- Trachea
- Esophagus
- Bronchi
- Pharynx
Q13: Which process describes breathing?
- Diffusion
- Inhalation
- Pulmonary ventilation
- Osmosis
Q14: What is the function of the larynx?
- Gas exchange
- Voice production
- Digest food
- Circulate blood
Q15: What structure connects the pharynx to the lungs?
- Esophagus
- Trachea
- Alveoli
- Bronchioles
Q16: Which respiratory membrane component is the thinnest?
- Alveolar wall
- Basement membrane
- Capillary endothelium
- Entire respiratory membrane
Q17: Which respiratory disorder involves airway constriction and wheezing?
- Bronchitis
- Asthma
- Tuberculosis
- Lung cancer
Q18: Which organ is directly involved in speech production?
- Alveoli
- Larynx
- Esophagus
- Pharynx
Q19: Which gas is essential for cellular respiration?
- Nitrogen
- Oxygen
- Carbon dioxide
- Helium
Q20: What is the site of gas exchange in the lungs?
- Bronchi
- Alveoli
- Trachea
- Pleura
Q21: What is the purpose of surfactant in alveoli?
- Trap pathogens
- Aid in gas exchange
- Prevent alveolar collapse
- Increase mucus secretion
Q22: What structure surrounds the lungs?
- Pleura
- Pericardium
- Meninges
- Peritoneum
Q23: Which muscle is responsible for inhalation?
- Rectus abdominis
- Trapezius
- Diaphragm
- Pectoralis major
Q24: Which term describes low oxygen in tissues?
- Hypercapnia
- Anoxia
- Hypoxia
- Asphyxia
Q25: What lines the nasal cavity to trap particles?
- Smooth muscle
- Hair cells
- Cilia and mucus
- Capillaries
Q26: How is most oxygen transported in the blood?
- As gas bubbles
- Bound to hemoglobin
- Dissolved in plasma
- As bicarbonate ions
Q27: What is the small flap of cartilage covering the larynx called?
- Glottis
- Epiglottis
- Uvula
- Tonsil
Q28: Which gas moves from alveoli to blood?
- Carbon dioxide
- Oxygen
- Nitrogen
- Helium
Q29: What is the primary function of the respiratory system?
- Digest food
- Circulate blood
- Exchange gases
- Produce hormones
Q30: What prevents food from entering the airway?
- Tonsils
- Larynx
- Uvula
- Epiglottis
Q31: Which cells in alveoli remove debris and pathogens?
- Type I cells
- Type II cells
- Alveolar macrophages
- Neutrophils
Q32: Which structure divides into primary bronchi?
- Pharynx
- Larynx
- Trachea
- Esophagus
Q33: What is apnea?
- Excessive breathing
- Irregular breathing rhythm
- Temporary cessation of breathing
- Rapid breathing
Q34: What is tidal volume?
- Total lung capacity
- Air remaining after exhale
- Air exchanged during normal breath
- Max air exhaled after max inhale
Q35: Which structures branch off from the trachea?
- Alveoli
- Bronchi
- Pharynx
- Larynx
Q36: Which respiratory condition involves alveolar destruction?
- Asthma
- Tuberculosis
- Emphysema
- Bronchitis
Q37: Which blood vessels surround the alveoli?
- Veins
- Lymphatics
- Capillaries
- Arteries
Q38: Which part of the brain regulates breathing?
- Cerebellum
- Medulla oblongata
- Cerebrum
- Pituitary gland
Q39: Which part of the respiratory tract contains vocal cords?
- Pharynx
- Larynx
- Trachea
- Bronchi
Q40: Where does external respiration occur?
- Tissue cells
- Trachea
- Alveoli
- Bronchioles
Q41: Which part of the respiratory system contains the carina?
- Nasal cavity
- Larynx
- Trachea
- Bronchioles
Q42: What is the main function of the cilia in the respiratory tract?
- Absorb oxygen
- Move mucus and debris out of airways
- Increase alveolar surface area
- Trap carbon dioxide
Q43: Which chemical in red blood cells binds to oxygen?
- Albumin
- Hemoglobin
- Fibrinogen
- Insulin
Q44: What is the function of the nasal conchae?
- Produce mucus
- Warm, filter, and humidify air
- Protect vocal cords
- Control airflow to lungs
Q45: What are the smallest airways before alveoli?
- Bronchi
- Bronchioles
- Capillaries
- Larynx
Q46: How is most carbon dioxide transported in blood?
- Bound to hemoglobin
- As bicarbonate ions
- Dissolved in plasma
- As CO2 bubbles
Q47: Which pleura lines the lungs themselves?
- Parietal pleura
- Visceral pleura
- Costal pleura
- Mediastinal pleura
Q48: What is the voice box called?
- Pharynx
- Larynx
- Trachea
- Bronchus
Q49: Which lung is smaller and why?
- Left, to make room for the heart
- Right, to make room for the liver
- Left, because it has more lobes
- Right, because of the aorta
Q50: Which lung disease destroys alveolar walls?
- Asthma
- Pneumonia
- Emphysema
- Bronchitis