Figure 1: Light microscopic images of carotid arteries in the age groups (G1, G2, G3). (a and b); IEL (arrow): Internal elastic lamina, EL (arrow head): Elastic lamellae, M: Media, Adv: Adventitia, *: Foamy Cell (macrophage). (c and d); arrow: fracture of EL; Cc: Cholesterol crystals. (e and f) inlets: Arrows: Fragmentation, Cc: Cholesterol crystals, I: Intima. Stain: a, c, e: Hematoxylene and Eosin; b, d, f: Orcein. Magnification: a, b, c, d, e, f: ×40; d', e', e'', f': ×100 (with immersion oil)