The organ weight relative to body weight of females. A: The organ weight relative to body weight of the brain, heart, kidney, liver, lung and uterus in. The average weight in grams ± SD is given. B: The organ weight relative to body weight of the ovary, spleen and thymus. The average weight in grams ± SD is given. C: The organ weight relative to body weight of the adrenal gland, pituitary gland and thyroid gland. The average weight in grams ± SD is given.