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Home Q & A Board Biology-Related Homework Help Cell Biology
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malaka33 malaka33
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6 years ago
An artificial pacemaker supplements the actions of
  a. sympathetic nerves.
  b. the atrioventricular node.
  c. the medulla oblongata.
  d. the sinoatrial node.
  e. the heart muscle itself.

Question 2

Heart excitation originates in the
  a. atrioventricular node.
  b. intercalated disk.
  c. sinoatrial node.
  d. pericardium.
  e. endocardium.
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bcspearsbcspears
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6 years ago
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malaka33 Author
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#2
6 years ago
Dude, you're awesome. I wish I had you as my teacher!
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#3
6 years ago
Come to the forum always, I'll be around to assist you again
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