Multiple Choice
What is one difference between air in the alveoli compared to air in the atmosphere?
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22. The Respiratory System
Respiration
Multiple Choice
Which of the following is NOT involved in respiration?
A
external respiration
B
internal respiration
C
pulmonary ventilation
D
external ventilation
Verified step by step guidance1
Understand the key components of respiration: Respiration involves several processes that facilitate the exchange of gases (oxygen and carbon dioxide) between the body and the environment.
Define external respiration: This is the exchange of gases between the air in the alveoli and the blood in the pulmonary capillaries. It involves the movement of oxygen into the blood and carbon dioxide out of the blood.
Define internal respiration: This refers to the exchange of gases between the blood in systemic capillaries and the tissue cells. Oxygen moves from the blood into the cells, and carbon dioxide moves from the cells into the blood.
Define pulmonary ventilation: This is the process of moving air into and out of the lungs, commonly known as breathing. It ensures that the alveoli are continuously supplied with fresh air.
Identify the term not involved in respiration: External ventilation is not a recognized term in the context of respiration. The correct terms are external respiration, internal respiration, and pulmonary ventilation.
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