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Pandabearsrlyfe Pandabearsrlyfe
wrote...
Posts: 529
Rep: 1 0
6 years ago
The heart chamber with the thickest wall is the
 
  a. left ventricle.
  b. right ventricle.
  c. right atrium.
  d. left atrium.
  e. both atria have equally thicker walls than
  the ventricles

Question 2

The driving force for heart contraction is
 
  a. contraction of the atria.
  b. contraction of the ventricles.
  c. closing of the AV valves.
  d. opening of the AV valves.
  e. closing of the aortic valve
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Replies
wrote...
6 years ago
Answer to q. 1

A

Answer to q. 2

B
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