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Darryl2057 Darryl2057
wrote...
Posts: 509
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6 years ago
_____ cells create impulses that determine the heart rate.
 
  a. Pacemaker
  b. Conductive
  c. Working
  d. Contractile

Question 2

The several layers of cells providing protection above the cell membrane are called the what?
 
  A) Complex epithelium B) Stratified epithelium
  C) Layered epithelium D) None of the above

Question 3

The QRS wave on an ECG tracing indicates:
 
  A) depolarization of the ventricles. B) depolarization of the atria.
  C) myocardial infarction. D) ventricular repolarization.
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Replies
wrote...
6 years ago
Answer to q. 1

A

Answer to q. 2

B

Answer to q. 3

A
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