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JohanaT16 JohanaT16
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6 years ago
The excitatory signal generated by the cardiac
  pacemaker spreads from fiber to fiber via
 
  a. gap junctions.
  b. tight junctions.
  c. gated channels.
  d. desmosomes.
  e. sodium-potassium channels

Question 2

The cardiac pacemaker is the
 
  a. sinoatrial node.
  b. atrioventricular node.
  c. pulmonary node.
  d. aortic node.
  e. sinoventricular node
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DunkinJrDunkinJr
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6 years ago
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JohanaT16 Author
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#2
6 years ago
Genius!!!!!!
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