ABSTRACT
The longitudinal muscle of the body wall of Isostichopus badionotus may be considered a model for excitation–contraction coupling in echinoderm muscle. Other echinoderm muscles are reviewed by comparison with the model. Echinoderm muscle is also of interest as a model for ‘mutable collagenous tissue’; however, in that tissue, Ca2+ has been proposed to function both in living control systems and in regulation of non-living interstitial substance.
© 2001 by Company of Biologists
2001
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