Multiple Choice
In an introduction to lung physiology, respiratory physiology is primarily the study of which process?
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22. The Respiratory System
Introduction to Lung Physiology
Multiple Choice
Which of the following is a primary function of the respiratory system?
A
Gas exchange: delivering oxygen to the blood and removing carbon dioxide
B
Filtering nitrogenous wastes to form urine
C
Secreting insulin to regulate blood glucose levels
D
Producing red blood cells through hematopoiesis
Verified step by step guidance1
Identify the main role of the respiratory system by recalling its primary physiological function in the body.
Understand that the respiratory system is responsible for the exchange of gases between the external environment and the bloodstream.
Recognize that this gas exchange involves delivering oxygen (O\_2) to the blood and removing carbon dioxide (CO\_2) from the blood.
Eliminate options that describe functions of other systems: filtering nitrogenous wastes relates to the urinary system, secreting insulin is a function of the endocrine system (pancreas), and producing red blood cells occurs in the skeletal system (bone marrow).
Conclude that the primary function of the respiratory system is gas exchange: delivering oxygen to the blood and removing carbon dioxide.
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