|Jun18-05, 09:20 AM||#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?
|Jun19-05, 04:22 AM||#2|
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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