Fig. 11. Three-dimensional reconstruction of the buccal mass during a swallowing cycle. The I1/I3 muscles are shown as a continuous blue mesh, the odontophore is shown as a continuous yellow mesh and the radular stalk is shown as a red solid. Views are shown in orthographic projection. (A) Side views of transition, protraction and retraction. Compare the mid-sagittal slices shown in Fig. 9. (B) Top view of transition, protraction and retraction. Compare the coronal slices shown in Fig. 10. To generate these views, the lateral groove (posteriormost edge of the I1/I3/jaw muscle complex) has been rotated so that it is vertical. (C) Front view of transition, protraction and retraction. The left, middle and right columns are based on frames 17, 24 and 35, respectively, of sequence 7732-S3. Compare fig. 9 of Drushel et al. (2002), which shows a three-dimensional reconstruction of a previous odontophore-centric model of the buccal mass for sequence 7732-S3, frames 15 (left), 26 (middle) and 35 (right).

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