Fig. 2.

Comparison of rhesus uterus in proliferative versus menstrual phase. Freshly removed uteri were cut in half along the fundal-cervical axis and photographed with macro lenses. a a dark line marks the endometrial-myometrial border and another line delineates the plane along which sections of the endometrium were cut. This specimen was taken on day 14 of the induced proliferative phase. Endo = endometrium. Myo = myometrium. b on day 2 of the menstrual cycle, bleeding is restricted to the upper third of the endometrium. The basalis and the lowest part of the functionalis does not bleed or slough. Scale bar = 1 cm; applies to both images