Multiple Choice
Which of the following findings by a nurse may indicate that a client has chronic hypoxia?
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22. The Respiratory System
Introduction to Lung Physiology
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Which of the following organs provides oxygen to the blood?
A
Liver
B
Heart
C
Kidneys
D
Lungs
Verified step by step guidance1
Begin by identifying the primary function of each organ listed in the options. The liver is involved in detoxification and metabolism, the heart pumps blood throughout the body, and the kidneys filter waste from the blood.
Understand the role of the lungs in the respiratory system. The lungs are responsible for gas exchange, where oxygen is absorbed into the bloodstream and carbon dioxide is expelled from the body.
Consider the process of respiration. When you inhale, air enters the lungs and oxygen is transferred to the blood through the alveoli, tiny air sacs in the lungs.
Recognize that the lungs are the only organ among the options that directly provide oxygen to the blood. This is a key function of the respiratory system.
Conclude that the lungs are the correct answer because they facilitate the exchange of gases, specifically providing oxygen to the blood, which is essential for cellular respiration and energy production in the body.
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