Respiratory System Functions Quiz

Challenge yourself with 18 questions on the functions, anatomy, and disorders of the respiratory system. Test your understanding now!

#1

Which of the following is not a function of the respiratory system?

Gas exchange
Blood filtration
Olfaction
Sound production
#2

What is the medical term for difficulty breathing?

Tachypnea
Dyspnea
Apnea
Bradypnea
#3

Which gas is primarily responsible for the regulation of respiratory rate?

Oxygen
Carbon dioxide
Nitrogen
Hydrogen
#4

What is the term for the process of moving air into and out of the lungs?

Respiration
Inhalation
Ventilation
Perfusion
#5

Which of the following is the primary gas exchanged during respiration?

Oxygen
Carbon dioxide
Nitrogen
Argon
#6

What is the term for the process of breathing out air from the lungs?

Inhalation
Exhalation
Ventilation
Respiration
#7

What is the name of the tiny air sacs in the lungs where gas exchange occurs?

Bronchioles
Alveoli
Bronchi
Trachea
#8

What is the primary function of the alveoli in the respiratory system?

To produce mucus
To humidify air
To exchange gases
To filter air
#9

Which of the following is not a component of the upper respiratory tract?

Pharynx
Bronchi
Nasal cavity
Larynx
#10

During inhalation, which muscle contracts to increase the volume of the thoracic cavity?

Diaphragm
Internal intercostals
External obliques
Pectoralis major
#11

What is the role of surfactant in the respiratory system?

To increase surface tension in the alveoli
To decrease surface tension in the alveoli
To regulate blood pH
To transport oxygen in the blood
#12

Which part of the brain primarily controls respiratory rate and rhythm?

Cerebellum
Medulla oblongata
Cerebrum
Pons
#13

Which of the following is not a component of the lower respiratory tract?

Trachea
Lungs
Pharynx
Bronchi
#14

Which of the following respiratory disorders is characterized by the collapse of the alveoli, leading to impaired gas exchange?

Bronchitis
Pneumonia
Atelectasis
COPD
#15

What is the term for the tiny hair-like structures in the respiratory tract that help to sweep mucus and debris out of the airways?

Cilia
Alveoli
Bronchioles
Capillaries
#16

What condition is characterized by inflammation and narrowing of the airways, leading to wheezing, coughing, and shortness of breath?

Asthma
Emphysema
Pneumonia
Bronchitis
#17

What is the name of the process by which oxygen is transported from the lungs to the body's tissues?

Diffusion
Oxygenation
Perfusion
Hemoglobin
#18

What is the term for the volume of air that remains in the lungs after a forceful exhalation?

Tidal volume
Inspiratory reserve volume
Residual volume
Expiratory reserve volume

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