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Functions of the nose include
- filtering the air
- warming the air
-humidifying the air
- acting as resonating chamber in speech
When the diaphragm and external intercostal muscles contract,
the volume of the thoracic cavity increases
If a student inhales as deeply as possible and then blows the air out until he cannot exhale any more, the amount of air that he expelled would be his/her
Which of the following factors would increase the amount of oxygen discharged by hemoglobin to peripheral tissues?
Harry suffers from cystic fibrosis and frequently has periods where he can hardly breathe. The problem is probably the result of
thick secretions that exceed the ability of the respiratory tract to remove them
In emphysema, the alveoli break down and coalesce into large air spaces. The lungs also lose elasticity and compliance is increased. You would expect a person who suffers from emphysema to have
-increased dead airspace
-decreased vital capacity
-elevated P(co2) in the blood
-Increased anteroposterior diameter of the thorax
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