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. 2025 Nov 13;21:664. doi: 10.1186/s12917-025-04513-5

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© The Author(s) 2025

Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.

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Fig. 4 — Transverse views of the right fore distal limb of sheep at the level of proximal sesamoid bones (plane 3 as referred in Fig. 1): anatomical cross-section (A), MR image (B), bone window CT image (C), and soft tissue window CT image (D). 1, lateral digital extensor tendon; 2, lateral branch of the lateral tendon of common digital extensor muscle; 3, medial branch of the lateral tendon of common digital extensor muscle; 4, medial limb of common digital extensor tendon; 5, distal extremity of metacarpus; 6, sagittal ridge; 7, dorsal synovial pouch of fetlock joint; 8, palmar synovial pouch of fetlock joint; 9, abaxial collateral ligaments of fetlock joint; 10, axial collateral ligaments of fetlock joint; 11, axial proximal sesamoid bones; 12- abaxial proximal sesamoid bones, 13, interdigital interseamoidean ligament; 14, collateral sesamoidean ligament, 15, palmar ligaments of fetlock joint; 16, DDFT; 17, SDFT; 18, manica flexoria; 19, pl, palmar annular ligament