Respiratory System Part 3 Question Preview (ID: 33701)


Third Part.[print questions]

All the systems of the body are affected by the respiratory system in that the respiratory system provides
a) antigens to trigger specific defenses
b) bicarbonate ions to buffer pH activity in the body
c) increased thoracic pressure for promoting defecation
d) oxygen and eliminates carbon dioxide

The most probable cause of restricted movements of the chest cavity in the elderly is
a) arthritic changes in the rib joints
b) excessive smoking
c) an increased incidence of asthma
d) the presence of pulmonary emboli

The loss of elasticity in the lungs due to aging decreases the
a) residual volume
b) tidal volume
c) vital capacity
d) All of the above

The destruction of alveoli due to aging or by respiratory irritants is called
a) asthma
b) emphysema
c) pneumonia
d) pulmonary embolism

At birth, blood is pulled into the pulmonary circulation by
a) the same drop in pressure that pulls air into the lungs
b) pulmonary surfactant
c) pulmonary arterial resistance
d) powerful contractions of the diaphragm

The reflex that inhibits the expiratory center and stimulates the inspiratory center when the lungs are collapsing is the ________reflex.
a) deflation
b) chemoreceptor
c) inflammatory
d) inflation

a
a) a
b)
c)
d)

a
a) a
b)
c)
d)

a
a) a
b)
c)
d)

a
a) a
b)
c)
d)

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