Q:

What does sympathetic nervous system stimulation to the smooth muscle layers in the bronchioles cause?

waelhammad
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2022-10-19
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What does sympathetic nervous system stimulation to the smooth muscle layers in the bronchioles cause?

  1. bronchoconstriction
  2. bronchodilation
  3. an increase in tidal volume
  4. increase in activity of the cilia
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waelhammad
2022-10-19
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B: Bronchodilation is stimulated by sympathetic nerve impulses, adrenalin & noradrenalin. Bronchoconstriction triggered by parasympathetic nerve impulses. 

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