Fig. 2

Effect of progesterone and follicle stimulating hormone treatment on mouse uterine myometrium (M) and perimetrium (P). Cellularity was greatly increased after both progesterone (a–b) and follicle stimulating hormone (c–d) treatment compared to atrophied uterus shown in Fig. 1. Perimetrial cells were observed to be organized as small islands (arrow) and the myometrium was very conspicuous and comprised of tightly woven myoblasts. Note that the spherical cells observed in atrophied uterine sections (Fig. 1) were not observed after treatment with P and FSH. Scale bar represents 20 μm