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Author Question: Which of the following does NOT happen when the sympathetic branch is stimulated? A) Heart rate ... (Read 30 times)

swpotter12

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on: Jul 2, 2018
Which of the following does NOT happen when the sympathetic branch is stimulated?
 
  A) Heart rate increases.
  B) The heart becomes more irritable.
  C) Impulses go faster through the AV node.
  D) Ventricular conduction slows down.

Question 2

Which of the following best explains the mechanism called irritability?
 
  A) The ventricles repolarize before they are ready.
  B) The normal pacemaker slows down and gives up control.
  C) A lower pacemaker site speeds up to take control of the heart.
  D) The normal pacemaker changes its inherent rate.


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ankilker

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Reply #1 on: Jul 2, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


swpotter12

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Reply 2 on: Jul 2, 2018
Great answer, keep it coming :)

Jsherida

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Reply 3 on: Yesterday
Wow, this really help

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