The Series Elasticity of Active Taenia Coli in Vitro

The series elastic components (SEC) of the smooth muscle taenia coli of the guinea‐pig have been investigated. The rate of isotonic shortening after release of an isometrically contracting taenia coli showed that the muscle behaved like a model with contractile elements in series with elastic compon...

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Bibliographic Details
Published in:Acta physiologica Scandinavica 1967-04, Vol.69 (4), p.348-354
Main Author: Aberg, A K
Format: Article
Language:English
Subjects:
Animals
Elasticity
Electrophysiology - instrumentation
Guinea Pigs
Male
Muscle Contraction
Muscle, Smooth - physiology
Taenia - physiology
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Summary:The series elastic components (SEC) of the smooth muscle taenia coli of the guinea‐pig have been investigated. The rate of isotonic shortening after release of an isometrically contracting taenia coli showed that the muscle behaved like a model with contractile elements in series with elastic components. Thus taenia coli has SEC in the same sense as it has been described for striated muscles and heart muscles. At 37°C and full isometric tension the SEC in taenia coli in vitro were measured to be extended on the average 13.1 ± 2.7 per cent of Lo. Maximum “isometric” work developed during an isometric contraction was approximately 30 per cent of the maximum work that the muscle could perform during an isotonic shortening.
ISSN:0001-6772
1365-201X
DOI:10.1111/j.1748-1716.1967.tb03531.x