Morphological variability of the plantaris tendon in the human fetus

Abstract Muscular anatomy often differs between species and individuals. In particular, the plantaris muscle (PM) demonstrates great morphological variability in its course and its proximal and distal attachments. The aim of this study was to investigate the morphological variation of the PM tendon...

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Main Authors: Anna Waśniewska-Włodarczyk, Friedrich Paulsen, Łukasz Olewnik, Michał Polguj
Format: Article
Language:English
Published: Nature Portfolio 2021-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-96391-8
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author Anna Waśniewska-Włodarczyk
Friedrich Paulsen
Łukasz Olewnik
Michał Polguj
author_facet Anna Waśniewska-Włodarczyk
Friedrich Paulsen
Łukasz Olewnik
Michał Polguj
author_sort Anna Waśniewska-Włodarczyk
collection DOAJ
description Abstract Muscular anatomy often differs between species and individuals. In particular, the plantaris muscle (PM) demonstrates great morphological variability in its course and its proximal and distal attachments. The aim of this study was to investigate the morphological variation of the PM tendon in human fetuses. Forty-six spontaneously aborted human fetuses (23 male, 23 female) aged 18–38 weeks of gestation were studied. Morphology of the attachment of the PM was assessed in both lower extremities (n = 92). The PM was present in 72 lower limbs (78.26%) and absent in 20 (21.74%). Eight types of PM distal attachment were identified. We propose an eight-fold classification of PM insertion in fetuses. Leg length, length of tendon, extension point (ExP) from the calcaneus, and ExP thickness differed significantly among types of PM insertion.
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spelling doaj.art-a32b01c35c95431e9ba0a11c8cc0fbcc2022-12-21T19:26:55ZengNature PortfolioScientific Reports2045-23222021-08-0111111210.1038/s41598-021-96391-8Morphological variability of the plantaris tendon in the human fetusAnna Waśniewska-Włodarczyk0Friedrich Paulsen1Łukasz Olewnik2Michał Polguj3Department of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of LodzInstitute of Functional and Clinical Anatomy, Friedrich Alexander University Erlangen-NürnbergDepartment of Anatomical Dissection and Donation, Medical University of LodzDepartment of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of LodzAbstract Muscular anatomy often differs between species and individuals. In particular, the plantaris muscle (PM) demonstrates great morphological variability in its course and its proximal and distal attachments. The aim of this study was to investigate the morphological variation of the PM tendon in human fetuses. Forty-six spontaneously aborted human fetuses (23 male, 23 female) aged 18–38 weeks of gestation were studied. Morphology of the attachment of the PM was assessed in both lower extremities (n = 92). The PM was present in 72 lower limbs (78.26%) and absent in 20 (21.74%). Eight types of PM distal attachment were identified. We propose an eight-fold classification of PM insertion in fetuses. Leg length, length of tendon, extension point (ExP) from the calcaneus, and ExP thickness differed significantly among types of PM insertion.https://doi.org/10.1038/s41598-021-96391-8
spellingShingle Anna Waśniewska-Włodarczyk
Friedrich Paulsen
Łukasz Olewnik
Michał Polguj
Morphological variability of the plantaris tendon in the human fetus
Scientific Reports
title Morphological variability of the plantaris tendon in the human fetus
title_full Morphological variability of the plantaris tendon in the human fetus
title_fullStr Morphological variability of the plantaris tendon in the human fetus
title_full_unstemmed Morphological variability of the plantaris tendon in the human fetus
title_short Morphological variability of the plantaris tendon in the human fetus
title_sort morphological variability of the plantaris tendon in the human fetus
url https://doi.org/10.1038/s41598-021-96391-8
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