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Author Question: Air entering the body is filtered, warmed, and humidified by the A) upper respiratory tract. B) ... (Read 201 times)

cartlidgeashley

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Air entering the body is filtered, warmed, and humidified by the
 A) upper respiratory tract.
  B) lower respiratory tract.
  C) lungs.
  D) alveoli.
  E) bronchioles.

Question 2

Which of the following is a sympathetic neurotransmitter used for vasodilation?
 A) acetylcholine
  B) norepinephrine
  C) dopamine
  D) serotonin
  E) nitric oxide



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izzat

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Answer to Question 1

A

Answer to Question 2

E





 

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