Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What is muscle tetany?

  1. Apr 2, 2010 #1
    Hello guys,

    So is tetany repeated involuntary contractions or just one smooth contraction? If the rate of action potential is rapid wouldn't that give repeated contractions? Also cardiac muscle doesn't have tetany for some reason? Thanks for anyone who can improve my understanding of tetany. Thanks!! :smile:
     
  2. jcsd
  3. Apr 7, 2010 #2

    Moonbear

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Yes. :biggrin: You've pretty much restated the definition. You get a lot of really rapid action potentials that don't give enough time in between them for the muscle to relax. The means the muscle is in a continuous state of contraction during the period of tetany, but due to many action potentials that keep sending signals to keep contracting.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook