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Author Question: The sinoatrial (SA) node initiates the cardiac cycle and is sometimes called the heart's ... (Read 44 times)

Anajune7

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The sinoatrial (SA) node initiates the cardiac cycle and is sometimes called the heart's _____________.
 
  A. electrode C. generator
  B. pacemaker D. alligator clamp

Question 2

The heart is contained within a closed cavity called the ________.
 
  A. mediastinum C. chest cavity
  B. pleural space D. thoracic outlet



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leannegxo

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Answer to Question 1

ANS: B

Answer to Question 2

ANS: A




Anajune7

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Reply 2 on: Jul 18, 2018
YES! Correct, THANKS for helping me on my review


bbburns21

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Reply 3 on: Yesterday
Wow, this really help

 

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