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Figure 2: Morphological evaluation of adrenal gland in rats exposed to noise. (a) (×40): Control group, (b-d) (×40): Group exposed to noise at 70 dB(A). Normal adrenal gland characterized by two concentric layers: Adrenal cortex and adrenal medulla, the cells of both layers are grouped in cords along capillaries. After noise exposure to 70 dB(A), adrenal cortex characterized by disorganization of each zona. ZG: Zona glomerulosa, ZF: Zona fasciculata, ZR: Zona reticularis, M: Medulla, Eo: Eosinophils, blue arrows: Abnormal segregation between zona glomerulosa and zona fasciculata

Figure 2: Morphological evaluation of adrenal gland in rats exposed to noise. (a) (×40): Control group, (b-d) (×40): Group exposed to noise at 70 dB(A). Normal adrenal gland characterized by two concentric layers: Adrenal cortex and adrenal medulla, the cells of both layers are grouped in cords along capillaries. After noise exposure to 70 dB(A), adrenal cortex characterized by disorganization of each zona. ZG: Zona glomerulosa, ZF: Zona fasciculata, ZR: Zona reticularis, M: Medulla, Eo: Eosinophils, blue arrows: Abnormal segregation between zona glomerulosa and zona fasciculata