Author Question: The paranasal sinuses secrete mucous that helps humidify and warm air as it enters the respiratory ... (Read 50 times)

rmenurse

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The paranasal sinuses secrete mucous that helps humidify and warm air as it enters the respiratory system.
 
  Indicate whether the statement is true or false

Question 2

Sphincters are rings of smooth muscles that regulate movement along internal pathways.
 
  Indicate whether the statement is true or false



nothere

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Answer to Question 1

TRUE

Answer to Question 2

TRUE



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