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OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE
The muscles of three different arthropods, a mite, a fly, and an ostracod, show variations in the length of the A region within a given individual. There is no indication that the observed differences in A band length are related to the functional state of the muscle since little, if any, decrease i...
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1963
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2106875/ https://www.ncbi.nlm.nih.gov/pubmed/14086762 |
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author | Aronson, John |
author_facet | Aronson, John |
author_sort | Aronson, John |
collection | PubMed |
description | The muscles of three different arthropods, a mite, a fly, and an ostracod, show variations in the length of the A region within a given individual. There is no indication that the observed differences in A band length are related to the functional state of the muscle since little, if any, decrease in the length of the A bands was noted when sarcomeres shortened. The length of the A region was determined by polarized light microscopy and in the case of the mite and the ostracod this measurement was made on intact muscles. It is concluded that the size of the A filaments in an individual can vary in a manner unrelated to immediate functional changes. The I filaments may vary in size, but this could not be clearly demonstrated. |
format | Text |
id | pubmed-2106875 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1963 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21068752008-05-01 OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE Aronson, John J Cell Biol Article The muscles of three different arthropods, a mite, a fly, and an ostracod, show variations in the length of the A region within a given individual. There is no indication that the observed differences in A band length are related to the functional state of the muscle since little, if any, decrease in the length of the A bands was noted when sarcomeres shortened. The length of the A region was determined by polarized light microscopy and in the case of the mite and the ostracod this measurement was made on intact muscles. It is concluded that the size of the A filaments in an individual can vary in a manner unrelated to immediate functional changes. The I filaments may vary in size, but this could not be clearly demonstrated. The Rockefeller University Press 1963-11-01 /pmc/articles/PMC2106875/ /pubmed/14086762 Text en Copyright © 1963 by The Rockefeller Institute Press This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Aronson, John OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE |
title | OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE |
title_full | OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE |
title_fullStr | OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE |
title_full_unstemmed | OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE |
title_short | OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE |
title_sort | observations on the variations in size of the a region of arthropod muscle |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2106875/ https://www.ncbi.nlm.nih.gov/pubmed/14086762 |
work_keys_str_mv | AT aronsonjohn observationsonthevariationsinsizeofthearegionofarthropodmuscle |