Figure 8
Tetraradial symmetry pattern of muscle architecture in mature Buddenbrockia plumatellae. (A) Three-dimensional volume rendering of confocal image stack from midsection of worm. (B) through (E) Maximum-intensity projections of image stack rotated in 90° steps to show arrangement and angle of muscle fibres in each muscle block as indicated in the inset in (A). F-actin (green), nuclei (red), mb, muscle block.