The exchange of gases between the blood and the body tissues is called
Correct answer: B. internal respiration
- A. external respiration
- B. internal respiration
- C. breathing
- D. ventilation
Explanation
Internal, or tissue, respiration is gas exchange at the cells, while external respiration happens at the lungs. Breathing is only the mechanical movement of air in and out.
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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