5. If skeletal muscle have no transverse tubules, would achievement potentials still be capable of trigger a contractio?

If skeletal muscle had no transverse tubules, would action potentials still be able to trigger a contraction?
Answers:
Action Potentials short Contraction in Frog Skeletal Muscle Fibers with Disrupted Transverse Tubules
on potentials, with no accompanying contraction, be recorded from muscle fibers in which the transverse tubular system had be disrupted. The results show that action potentials require an intact transverse tubular system to cause contraction. Furthermore, both the after-depolarization following a single action potential and the slower, in arrears afterpotential following a train of action potentials were absent surrounded by this preparation. Therefore, both phenomena must normally involve the transverse tubular system. Source(s): Peter W. Gage 1 and Robert S. Eisenberg 1
1 Department of Physiology, Duke University Medical Center, Durham, North Carolina

Science Magazine > 29 December 1967 > Gage et al. , pp. 1702 - 1703
nce 29 December 1967:
Vol. 158. no. 3809, pp. 1702 - 1703
DOI: 10.1126/science.158.3809.1702
http://www.sciencemag.org/cgi/content/abstract/158/3809/1702

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