NEW
Font size
WorksheetsRespiratory System Quiz
Total questions: 21
Worksheet time: 11mins
Which of the following is NOT a function of the respiratory system?
Gas exchange
Regulation of blood pH
Production of insulin
Voice production
What is the primary function of the conducting zone?
Gas exchange
Transport air into the lungs
Exchange carbon dioxide for oxygen
Filter blood in the lungs
The nasal conchae function to:
Produce sound
Trap and filter incoming air
Transport food to the stomach
Exchange gases in the lungs
Which part of the pharynx serves as a passageway for only air?
Oropharynx
Laryngopharynx
Nasopharynx
The structure that prevents food from entering the trachea during swallowing is the:
Epiglottis
Cricoid cartilage
Larynx
Trachea
The trachea is reinforced with C-shaped cartilage rings because they:
Prevent food from entering the trachea
Allow flexibility while keeping the airway open
Store oxygen for gas exchange
Help in the production of sound
Which structure is the site of gas exchange in the lungs?
Bronchioles
Trachea
Alveoli
Nasal cavity
What is the primary muscle responsible for breathing?
Pectoralis minor
Sternocleidomastoid
Intercostal muscles
According to Boyle’s Law, when lung volume increases, lung pressure:
Increases
Decreases
Stays the same
Becomes equal to atmospheric pressure
Which lung volume represents the normal amount of air exchanged during quiet breathing?
Inspiratory reserve volume
Tidal volume
Expiratory reserve volume
Residual volume
What is the function of hemoglobin in oxygen transport?
Breaks down carbon dioxide in the blood
Transports oxygen in red blood cells
Converts oxygen into carbon dioxide
Stimulates the diaphragm to contract
Which law explains why gases diffuse across the alveolar membrane based on concentration gradients?
Boyle’s Law
Henry’s Law
Dalton’s Law
The medullary respiratory center is located in which part of the brain?
Cerebellum
Medulla oblongata
Cerebrum
Hypothalamus
What effect does aging have on the respiratory system?
Increased lung elasticity
Increased macrophage activity
Decreased vital capacity
Increased oxygen exchange efficiency
The exchange of oxygen and carbon dioxide between the alveoli and blood is called:
Pulmonary ventilation
External respiration
Internal respiration
Cellular respiration
What is the role of the pleura surrounding the lungs?
Increase oxygen absorption
Prevent collapse of the alveoli
Reduce friction during breathing
Which of the following lung volumes cannot be directly measured with a spirometer?
Tidal volume
Inspiratory reserve volume
Expiratory reserve volume
Residual volume
The main factor that determines the direction of gas movement in the lungs is:
Temperature
Air humidity
Partial pressure differences
Blood viscosity
What is the function of the carina in the trachea?
It traps dust and debris before entering the lungs
It prevents food from entering the airways
It triggers the cough reflex if foreign substances enter
It increases airflow into the alveoli
The chloride shift occurs during gas exchange to:
Transport oxygen to the blood
Maintain electrical neutrality in red blood cells
Increase carbon dioxide binding to hemoglobin
Filter air before it enters the lungs
What is the primary function of maintaining electrical neutrality in red blood cells?
Increase oxygen transport efficiency
Maintain electrical neutrality in red blood cells
Enhance immune response
Prevent nitrogen buildup in the bloodstream
