Frog Cardiovascular System

This page last updated May 20, 2005

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Review Questions:
  1. Why do we bathe the heart in Ringer's solution?
  2. After applying one of the drugs to the frog heart, the heart beats generally changed from normal.  What are the two reasons that the heart rate always returned to normal.
  3. Explain what is meant by "vagal escape"
  4. When can you electrically stimulate the heart to cause an extra systole?
  5. Why is it important that the heart not be capable of achieving tetanus?

Click here for answers to the questions.

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