Advanced Emergency Medical Technician (AEMT) Practice Test

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Prepare for the Advanced Emergency Medical Technician Test. Utilize flashcards and multiple choice questions with hints and explanations. Maximize your exam readiness!

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The exchange of oxygen and carbon dioxide between blood and body cells is called:

External respiration
External ventilation
Internal ventilation
Internal respiration

The correct answer is: Internal respiration

The process by which oxygen and carbon dioxide are exchanged between blood and body cells is known as internal respiration. This occurs at the cellular level, where oxygen diffuses from the blood into the tissues, and carbon dioxide, a waste product of metabolism, moves from the tissues into the blood. This exchange is essential for maintaining cellular function and overall homeostasis in the body. In contrast, external respiration refers to the exchange of gases between the atmosphere and the lungs, while external ventilation pertains to the mechanical process of moving air into and out of the lungs. Internal ventilation is not a term typically used in respiratory physiology, which makes internal respiration the correct terminology for the process of gas exchange at the cellular level. Understanding these distinctions is crucial for AEMTs, as they need to accurately identify and describe various respiratory processes in their practice.