Mammal, canine ovary (LM, Medium)

Structure List Ovarian bursa Surface epithelial layer Primordial follicles Primary follicles Basement membrane Ova Granulosa cells

OVARY/FOLLICLE. The two ovaries in mammals are the site of oogenesis, production of the female gametes. In most mammals the OOGONIA have formed primordial follicles at the time of birth. These primordial follicles will go through several developmental stages until a mature follicle ruptures, expelling the ovum. The ovaries also produce hormones important to reproductive cycles and pregnancy.