Multiple Choice
Which of the following is a primary function of the respiratory system?
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22. The Respiratory System
Introduction to Lung Physiology
Multiple Choice
What is the primary function of the pulmonary circuit in the human body?
A
To carry deoxygenated blood from the heart to the lungs for oxygenation
B
To transport oxygenated blood from the heart to the rest of the body
C
To regulate blood pressure throughout the circulatory system
D
To deliver nutrients to the tissues and remove waste products
Verified step by step guidance1
Understand the components of the circulatory system: The human circulatory system consists of two main circuits - the pulmonary circuit and the systemic circuit.
Identify the role of the pulmonary circuit: The primary function of the pulmonary circuit is to transport deoxygenated blood from the right side of the heart to the lungs.
Explain the process in the lungs: In the lungs, the blood releases carbon dioxide and picks up oxygen during the process of gas exchange.
Trace the path back to the heart: After oxygenation, the now oxygen-rich blood returns to the left side of the heart.
Differentiate from the systemic circuit: Contrast this with the systemic circuit, which carries oxygenated blood from the heart to the rest of the body and returns deoxygenated blood back to the heart.
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