The exchange of oxygen and carbon dioxide between the alveoli of the lungs and the pulmonary blood system is
a. internal respiration c. inspiration
b. external respiration d. expiration
B
Internal respiration is the interchange of oxygen and carbon dioxide between the circulating blood and cells throughout the body. External respiration is the exchange of oxygen and carbon dioxide between the alveoli of the lungs and the pulmonary blood system. Inspiration is the intake of air into the lungs. Expiration is the movement of gases from the lungs to the atmosphere.
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