5 - Gynae - The Ovary and its disorders - Anatomy and Function Flashcards
Normally occupy what? which is where? overlying what? are attached to ? by mesovarium, attached to pelvic wall by ? and the ? by the ovarian ligament.
ovarian fossa, lat pelvic wall, ureter, broad ligament, infundibulopelvic ligament, uterus
Blood supply from ? aa, but anastomosis w branches of ? aa in the ? ligament
ovaries have ? ? covered by germinal epithelium. ? ? contains conn tissue and bl vessels. cortex contains ? and ? cells
ovarian aa, uterine aa, broad ligament
outer cortex
inner medulla
follicles and theca cells
oestrogen secr by ? cells in the growing ? and also by theca cells > rare ? ? ? from these cells
a few ? enlarge each month under influence of ? but only ? reaches ~ 20mm and ruptures in response to ? ? ? surge to release its ?
granulosa
follicle
oestr secr tumours
follicles FSH one mid cycle LH surge oocyte
after ? the collapsed follicle becomes the ? ? - this continues to produce ? and ? to support ? whilst awaiting ? and ?.
ovulation corpus luteum oestr and prog endometrium fertilisation and implantation
if fertilisation and implantation don’t occur the ? ? involutes, ? decline and ? begins. If fert/imp occur ? from the ? maintains the CL until ? weeks when ? ? takes over.
Persistence of the CL in non-preg > ?
corpus luteum hormones menstruation hCG from the trophoblast 7-9 fetoplacental unit cysts