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Dimensional analysis of trophospheres. Using ImageJ software, light micrographs (100×) are processed and analyzed for sphere diameter, circularity (Area:Perimeter2), and roundness (Major:Minor). Diameter measurements of 130 spheres over six trials are 278.4±4.6 μm. Trophospheres are highly circular (0.73±0.006) and round (0.77±0.009). All values are mean±standard error calculated using GraphPad Prism software.
