10 Questions
Respiration means exchange of gases between body cells and the ______.
environment
During inhalation, the diaphragm contracts and raises the ______.
rib
Quiet expiration is a ______ process.
passive
External respiration involves the exchange of oxygen and carbon dioxide between the air in the lungs and the blood in surrounding ______.
capillaries
Septal cells at alveolus secrete ______.
surfactant
It is phospholipid fluid to prevent alveoli dry, to reduce surface tension and to prevent alveoli walls collapsing. Types of Breathing: Eupnea is ______________ breathing
normal
Hyperventilation refers to rapid and deep ______________
respirations
Hypoventilation involves slow and shallow ______________
respirations
Dyspnea is characterized by labored or difficult ______________
respirations
Asthma is triggered by an allergen causing bronchoconstriction and affecting air ______________
flow
Test your knowledge on the general functions of the respiratory system, the organs in the upper and lower respiratory tract, breathing mechanisms, and internal and external respiration. Learn about the lungs, organs in the respiratory system, and the concept of respiration.
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