Alan has been smoking for the past 20 years and has been experiencing some shortness of breath and a cough. His physician, Dr. Anthony, sees him. The physician orders a lung capacity test and a chest X-ray. Name the organs of external respiration.
Alan has been smoking for the past 20 years and has been experiencing some shortness of breath and a cough. His physician, Dr. Anthony, sees him. The physician orders a lung capacity test and a chest X-ray. Name the organs of external respiration.
The cells making up the human tissues and organs require sufficient amounts of oxygen to survive and perform their function effectively. These aerobic conditions are fulfilled by the exchange of gases: oxygen and carbon dioxide. In human physiology, the movement of the oxygen into the cells and simultaneous movement of carbon dioxide in the opposite direction from the cells is referred to as respiration. The process of respiration can be divided into two categories: external respiration and internal respiration. External respiration refers to exchange of gases (oxygen and carbon dioxide) between the external environment and lungs of the body. Internal respiration refers to movement of gases within the cells of the body and the blood, where oxygen is utilized to release energy in the form of ATP (Adenosine Triphosphate).
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