the pattern of steroidogenesis in pig follicles is consistent with the two-cell theory of steroidogenesis in that androgen produced by the theca is aromatized to oestrogen by the granulosa cells , however , in contrast to that of many other species , the theca of the pig also produces oestradiol in quantities comparable to those secreted by the granulosa .
C0007634
cell
C1327616
secreted