Frog Fibres: What Muscle Architecture Can Tell Us About Anuran Locomotor Function DOI Creative Commons
Alice Leavey, Christopher T. Richards, Laura B. Porro

et al.

Journal of Morphology, Journal Year: 2024, Volume and Issue: 286(1)

Published: Dec. 17, 2024

Muscle fibre architecture is an important aspect of anatomy to consider when estimating muscle properties. How varies across species specialising in different locomotor functions not well understood anurans, due difficulties associated with extraction small animals using traditional methods. This paper presents the first digital analysis frogs automated fibre-tracking algorithm and contrast-enhanced µCT scans. We find differences hindlimb between modes, as examples many-to-one mapping form function. The trade-off length physiological cross-sectional area, therefore contractile speed, range motion force output, differs significantly jumpers swimmers, but walker-hoppers. Where place on this functional spectrum largely depends being examined. There also some evidence that may be adjusted increase speed without undertaking metabolically expensive process growing maintaining larger muscles. Finally, we make a detailed outline remaining gaps our understanding anuran can now addressed valuable method future research.

Language: Английский

Comparative muscle anatomy of the anuran pelvis and hindlimb in relation to locomotor mode DOI Creative Commons
Alice Leavey, Christopher T. Richards, Laura B. Porro

et al.

Journal of Anatomy, Journal Year: 2024, Volume and Issue: 245(5), P. 751 - 774

Published: Aug. 9, 2024

Abstract Frogs have a highly conserved body plan, yet they employ diverse array of locomotor modes, making them ideal organisms for investigating the relationships between morphology and function, in particular whether anatomical complexity is prerequisite functional complexity. We use diffusible iodine contrast‐enhanced microCT (diceCT) imaging to digitally dissect gross muscle anatomy pelvis hindlimbs 30 species frogs representing five primary including first known detailed dissection some world's smallest frogs, forming largest digital comparative analysis musculoskeletal structure any vertebrate clade date. By linking dissections phylogenetic methods, we then quantify compare function across over 160 million years anuran evolution. In summary, found that bone lengths pelvic crest sizes are generally not reliable predictors sizes, which highlights important implications future palaeontological studies. Our investigation also presents previously unreported differences specialising different several frog hindlimb muscles, extremely difficult extract measure using traditional approaches. Furthermore, find evidence many‐to‐one one‐to‐many mapping form phylogeny. Additionally, perform quantitative how degree separation can differ frogs. history key contributing factor thigh, while shank muscles influenced more strongly by mode. Finally, our 3D reconstructions published alongside this manuscript contribute towards research serve as educational materials.

Language: Английский

Citations

2
Frog Fibres: What Muscle Architecture Can Tell Us About Anuran Locomotor Function DOI Creative Commons
Alice Leavey, Christopher T. Richards, Laura B. Porro

et al.

Journal of Morphology, Journal Year: 2024, Volume and Issue: 286(1)

Published: Dec. 17, 2024

Muscle fibre architecture is an important aspect of anatomy to consider when estimating muscle properties. How varies across species specialising in different locomotor functions not well understood anurans, due difficulties associated with extraction small animals using traditional methods. This paper presents the first digital analysis frogs automated fibre-tracking algorithm and contrast-enhanced µCT scans. We find differences hindlimb between modes, as examples many-to-one mapping form function. The trade-off length physiological cross-sectional area, therefore contractile speed, range motion force output, differs significantly jumpers swimmers, but walker-hoppers. Where place on this functional spectrum largely depends being examined. There also some evidence that may be adjusted increase speed without undertaking metabolically expensive process growing maintaining larger muscles. Finally, we make a detailed outline remaining gaps our understanding anuran can now addressed valuable method future research.

Language: Английский

Citations

0