A synchrotron X-ray CT-based 3D atlas of the songbird syrinx with single muscle fibre resolution implies fine motor control of syringeal vocal folds
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| Titel: | A synchrotron X-ray CT-based 3D atlas of the songbird syrinx with single muscle fibre resolution implies fine motor control of syringeal vocal folds |
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| Autoren: | Iris Adam, Anja T. Zai, Anna E. Stepien, Homare Yamahachi, Christian M. Schlepütz, Richard H. R. Hahnloser, Coen P. H. Elemans |
| Quelle: | Philosophical Transactions of the Royal Society B: Biological Sciences. 380 |
| Verlagsinformationen: | The Royal Society, 2025. |
| Publikationsjahr: | 2025 |
| Schlagwörter: | Male, sound production, SXCT, vocal communication, vocal learning, Animals, Vocal Cords, Finches, Vocalization, Animal, Laryngeal Muscles, Tomography, X-Ray Computed, song system, Synchrotrons |
| Beschreibung: | Avian vocalizations are produced by precisely coordinated motion of the respiratory, syringeal and upper vocal tract systems. Syringeal muscles are controlled with unprecedented resolution, down to independent control of individual muscle fibres. However, we currently lack an anatomical description of syrinx muscles at single fibre resolution. Here, we combined a micron-resolution synchrotron X-ray CT scan of the zebra finch syrinx with micro-dissections of independent specimens to resolve syrinx muscle morphology at individual muscle fibre level. We define two new, previously unknown muscles and update the fibre trajectories and attachment sites of three previously described muscles. Our new insights into the fine anatomy of syrinx muscles show that not one, but both avian vocal folds can be directly controlled by contracting syrinx muscles. Thus, our data reveal novel anatomical complexity with consequences for the biomechanics and motor control of sound production. This article is part of the theme issue 'The biology of the avian respiratory system'. |
| Publikationsart: | Article |
| Sprache: | English |
| ISSN: | 1471-2970 0962-8436 |
| DOI: | 10.1098/rstb.2023.0430 |
| Zugangs-URL: | https://pubmed.ncbi.nlm.nih.gov/40010387 https://portal.findresearcher.sdu.dk/da/publications/fba6f2db-8e70-4b01-9ca6-62b6b4b94bea https://doi.org/10.1098/rstb.2023.0430 |
| Rights: | URL: https://royalsociety.org/-/media/journals/author/Licence-to-Publish-20062019-final.pdf |
| Dokumentencode: | edsair.doi.dedup.....c22458a80cdc2ee4814c4c821025bc43 |
| Datenbank: | OpenAIRE |
Nájsť tento článok vo Web of Science | Abstract: | Avian vocalizations are produced by precisely coordinated motion of the respiratory, syringeal and upper vocal tract systems. Syringeal muscles are controlled with unprecedented resolution, down to independent control of individual muscle fibres. However, we currently lack an anatomical description of syrinx muscles at single fibre resolution. Here, we combined a micron-resolution synchrotron X-ray CT scan of the zebra finch syrinx with micro-dissections of independent specimens to resolve syrinx muscle morphology at individual muscle fibre level. We define two new, previously unknown muscles and update the fibre trajectories and attachment sites of three previously described muscles. Our new insights into the fine anatomy of syrinx muscles show that not one, but both avian vocal folds can be directly controlled by contracting syrinx muscles. Thus, our data reveal novel anatomical complexity with consequences for the biomechanics and motor control of sound production. This article is part of the theme issue 'The biology of the avian respiratory system'. |
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| ISSN: | 14712970 09628436 |
| DOI: | 10.1098/rstb.2023.0430 |