The sole activity of the respiratory system is breathing.
True False
The exchange of gases between the blood and tissue cells is external respiration.
True False
Air flows in the process of pulmonary ventilation because of pressure differences between the atmosphere and the gases inside the lungs.
True False
Intrapleural pressure is the pressure inside the alveoli of the lungs while intraalveolar pressure is the pressure within the pleural cavity.
True False
The amount of air that is exchanged during one cycle varies with age, sex, size, and physical condition.
True False
External nares are two openings through which air enters the nasal cavity from the outside.
True False
Nasal cavities are air spaces within the skull.
True False
The upper part of the pharynx lets only air pass through. Lower parts permit air, foods, and fluids to pass.
True False
The pharynx plays an essential role in human speech.
True False
The right lung and the left lung are the same in size. However, the right lung has three lobes while the left lung has two lobes.
True False
2 answers
true
true
false
false
true
false
true