Dynamic Properties of Giant Muscle Fibers of the Barnacle
Open Access
- 1 August 1967
- journal article
- Published by Oxford University Press (OUP) in American Zoologist
- Vol. 7 (3) , 611-614
- https://doi.org/10.1093/icb/7.3.611
Abstract
Giant muscle fibers of the barnacle give graded, relatively slow contractions, A plateau level, termed the unit response, occurs with stimuli of 3 msec, but pulses longer than 10–15 msec give much greater tension or shortening. Repetitive stimulation with pulses of 3 msec leads to a tetanus. The magnitude of active state was determined, and found to be also graded in nature and slow to develop, though early in onset. The full development of active state requires 80–120 msec. A high level of effective series-elasticity was associated with the sarcomeres themselves.Keywords
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