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. 2019 Aug 19;222(16):jeb191254. doi: 10.1242/jeb.191254

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© 2019. Published by The Company of Biologists Ltd

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.

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Fig. 3. — Soft radular surface model. (A) Reconstruction of the entire buccal mass based on high-spatial-resolution MRI provided initial resting positions for the muscles beneath the radular surface. (B) A dorsal view of the radular surface. (C) Schematic of the flattened radular surface. (D) Static image of the radular surface and underlying tissues extracted from the high-spatial-resolution MRI model shown in A. (E) Simplification of the structure of the I4/I6 complex (red mesh). (F) Location of structures during biting from a high-temporal-resolution MRI video frame. (G) Radular surface (blue line) is fitted to the model structures (based on MRI, F). (H) Vertex group representing SRFs (see text). (I) Lesion of sub-radular fibers (see Materials and Methods, ‘Model’).