Assertion: ovary's follicle | /r/HasProperty | w pg
Facets:
Source sentences:
text: The stromal cells surrounding the follicle have differentiated to form an inner layer (theca interna) of plump cells that secrete steroid precursors and an outer layer (theca externa) composed of concentrically arranged stromal cells that provide support for the developing follicle (W pg 363, 19.5).