which hormone is responsible for initiating activity in the ovary?
What hormone stimulates activity in the ovaries? There are many hormones which stimulate activity in the ovaries. The two main ones are FSH (follicle-stimulating hormone) and LH (luteinizing hormone). FSH triggers the growâ¦th of an ovum, and LH is involved in causing ovulation (the release of the ovum/egg). 1 person found this useful.