Final answer:
The pituitary gland produces the hormones FSH and LH, which are responsible for the maturation of ova in the ovaries. FSH stimulates the ovaries to produce estrogen and mature follicles, while LH initiates ovulation.
Step-by-step explanation:
The maturation of ova in the ovary is under control of the pituitary hormones follicle-stimulating hormone (FSH) and luteinizing hormone (LH). These gonadotropins are crucial for the reproductive system and their release is regulated by the hypothalamic hormone gonadotropin-releasing hormone (GnRH). Specifically, FSH is responsible for the stimulation of the ovaries to secrete estrogen and mature follicles, while LH triggers ovulation and the production of other hormones such as estrogens and progesterone.