Regional differences in androgen thresholds of the epididymis of the castrated rat

The action of graded doses of testosterone and dihydrotestosterone on the maintenance of the functional integrity of the different regions of the epididymis of the castrated rat was investigated. The epididymis required higher amounts of androgens that the accessory glanss for maintenance of its weight and secretory activity. These results are discussed in relation to (a) the androgen differences in the epididymis in its response to androgens and (c) the mode of action of the two androgens