The figure presents comparative ultrastructural and quantitative analyses of axonal morphology between control and experimental groups. Panels A–F show high-resolution electron microscopy images of myelinated axons across three anatomical regions: optic nerve (ON), lumbar spinal cord (LSCC), and thoracic spinal cord (TCSC). Control samples (A, C, E) display axons with circular profiles and uniform myelin sheaths, while experimental samples (B, D, F) exhibit variability in axon diameter and sheath thickness. Images highlight cross-sectional differences in fiber density, packing, and myelin compaction. Panels G–I provide scatter plots of axon diameter measurements, with regression lines indicating distribution relationships between conditions. Each scatter plot plots individual axon diameters (µm) against frequency counts, showing that experimental groups tend toward altered size distributions relative to controls. Panels J–L present histograms of axon diameter frequency distributions for ON, LSCC, and TCSC, respectively, with distinct peaks indicating shifts in axonal populations between groups. Panels M and N summarize quantitative comparisons in bar graph format: panel M shows mean axon diameter differences in the optic nerve, while panel N compares diameters across spinal cord regions. Statistical indicators (asterisks) denote levels of significance, with *** representing p < 0.001 and ** representing p < 0.01. The collective dataset illustrates region-specific and statistically significant differences in axon diameters between control and experimental conditions, integrating structural micrographs with quantitative morphometric analysis.

Photographic depiction of a single slice of white bread isolated against neutral light-gray background. Slice geometry rectangular with rounded top corners, conforming to standardized pan-baked loaf morphology. Crust margin consistently thin, golden-brown in coloration, encircling slice perimeter. Upper crust dome slightly darker than lateral sides, reflecting differential heat exposure during baking.

Interior crumb structure homogeneous, exhibiting fine alveolar distribution with evenly spaced pores of varying diameters. Pores elongated vertically, aligning with expansion forces of fermentation and oven spring. Network density uniform, walls thin and smooth, indicative of refined flour dough processed under controlled industrial conditions. Color of crumb near white with faint cream tonality, absence of bran or wholegrain inclusions confirming high-refinement flour composition.

Edges of slice cut with smooth planar surfaces, confirming mechanical slicing with industrial blades, ensuring consistent thickness across batch. Surfaces flat, parallel, and even, demonstrating precision slicing characteristic of commercial production.

Lighting diffuse and evenly distributed, minimizing shadows while enhancing visibility of crumb porosity and crust gradation. Background void of additional elements, isolating slice as analytical specimen for morphological observation. Composition emphasizes industrial uniformity, controlled baking parameters, and reproducible geometry inherent to standardized commercial bread production.