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Home Q & A Board Biology-Related Homework Help General Biology
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Nikky.05 Nikky.05
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6 years ago
Which of the following statements is false?
  a. A heart will stop beating when the nerves to the
  heart are severed.
  b. Some cardiac muscle cells are self-excitatory.
  c. The pacemaker of the heart is the sinoatrial
  node.
  d. Cardiac muscle cells have numerous gap
  junctions on their sides to allow rapid
  communication.
  e. Cardiac muscle cells of the two ventricles
  contract essentially in unison.

Question 2

The cardiac conduction system consists of
  a. the sinoatrial node.
  b. the atrioventricular node.
  c. junctional fibers.
  d. a branching bundle of fibers.
  e. all of these.
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walravensericwalravenseric
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6 years ago
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Nikky.05 Author
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6 years ago
Smart ... Thanks!
ealvino1610
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