![]() ![]() There is no significant difference between the non-cancerous and cancerous groups or between adult males and parous females under 1 year of age. The mitotic count per standard area in the cortex is given. ![]() Cancerous males have little degeneration and non-cancerous males none.Ħ. Four older females of the non-cancerous group have a slight amount of brown degeneration. Both maintain a high incidence of mammary carcinoma. CB females show an advanced condition of brown degeneration, CBB females do not. ![]() The medulla is involved in advanced conditions.ĥ. Brown degeneration, found in the adrenal of the cancerous group, arises in the cells of the inner zona fasciculata the subsequent formation of the typical lobules is traced. In the parous non-cancerous female, the zona reticularis is always present in the adult male it is little developed and often absent.Ĥ. the medulla is about the same size in males and females in the female the cortex is 82.09 per cent, of the whole gland, in the male 75.64 per cent.ģ. In the adults of both groups the parous female adrenal is bigger than the male by about 25 per cent. One group is non-cancerous (52 males and 71 females) the other the RIII cancerous strain from which two sub-strains have been developed (i) the CB sub-strain (23 males and 25 females) (ii) the CBB sub-strain (35 males and 40 females).Ģ. The adrenals of two groups of mice, ranging in age from 18 days to over 1 year, were examined. ![]()
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