Muscle contraction

  • Thread starter Cheman
  • Start date
235
1
Why do muscle fibres need T-tubules for the action potential to go down to stimulate the sarcoplasmic reticulum to release calcium ions? Why couldnt it just travel along the sarcomere?

Thanks. :-)
 
508
1
The T-tubules lead the activity to places where it is effective (i.e. close to contact points with the sarcoplasmatic reticulum).
 

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