13 Questions
Which structure is the site of efficient gas exchange in the lung?
Pulmonary capillary network
How many capillaries are there per alveolus?
500-1000
What may facilitate the spread of pulmonary infection?
Pores of Kohn
What is the major component of the chest wall that allows for the movement of the lung root with inferior inspiration?
Pulmonary ligament
What is one of the functions of the conducting airways?
Transporting O2/CO2 to and from gas exchange airways
What is the most important function of the respiratory system?
Supplying metabolic needs of tissues with O2
What opposes the tendency of alveoli to collapse?
Lung parenchyma with interwoven elastic and connective tissue fibers
What is the function of the Pores of Kohn?
Allowing for collateral ventilation between alveoli
What do the turbinates in the nasal cavity primarily contribute to?
Warming inhaled air
Which structure in the conducting airways produces turbulent airflow in the nasal cavity?
Mucous glands and cells
What is the primary function of the mucociliary escalator?
Removing phlegm that could cause infection
What allows for sampling of the external environment with each breath?
Metabolism by cells of the lung
What removes CO2 (H+ ions) from the body?
(H+ ions) being produced by cellular metabolism and removed by ventilation
Test your knowledge of respiratory structure and function with this quiz. The quiz covers the functions of conducting airways, the respiratory system, and the alveoli and alveolar-capillary unit.
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