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Author Question: In which direction does carbon dioxide move during internal respiration? A) from the blood into the ... (Read 44 times)

sc00by25

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on: Feb 28, 2019
In which direction does carbon dioxide move during internal respiration?
 A) from the blood into the tissue cells
  B) from the blood into the lungs
  C) from the lungs into the atmosphere
  D) from the tissue cells into the blood
  E) from the lungs into the blood

Question 2

Explain what dual innervation means with regard to the autonomic nervous system. Using the cardiovascular, respiratory and digestive systems as examples, explain how dual innervation regulates the function of each system.


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Amiracle

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Reply #1 on: Feb 28, 2019
Answer to Question 1

D

Answer to Question 2

Dual innervation means that both the sympathetic and parasympathetic nervous systems control some areas of the body. In general, they have opposing actions. In the cardiovascular system, sympathetic stimulation increases heart rate and contractility while parasympathetic stimulation decreases heart rate. In the respiratory system, sympathetic stimulation dilates the airways while parasympathetic stimulation constricts the airways. In the digestive system, sympathetic stimulation slows down motility and release of secretions while parasympathetic stimulation increases motility and release of secretions.


sc00by25

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Reply 2 on: Feb 28, 2019
Wow, this really help

Chelseyj.hasty

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Reply 3 on: Yesterday
Excellent

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