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The changes in birefringence during contraction and stretch of a smooth muscle (retractor of Phascolosoma)

✍ Scribed by Fischer, Ernst

Publisher: Wiley (John Wiley & Sons)
Year: 1936
Tongue: English
Weight: 629 KB
Volume: 8
Category: Article
ISSN: 0095-9898
DOI: 10.1002/jcp.1030080408

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✦ Synopsis

Most of our knowledge concerning the double refraction of muscle and its changes under various conditions has been derived from measurements on striated muscles of vertebrates and arthropods. Unfortunately these muscles have a very complicated histological structure, being built up of microscopically distinguishable parts of different optical characteristics. Thus difficulties arise in determining which parts of the histological structure are involved in the measured changes in birefringence, since the latter cannot be determined very exactly f o r each of the different bands in striated muscles. In consequence there still exists much discussion about the location of the change in double refraction occurring in the various discs of striated muscles (e.g.,

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