Ovary

The human ovary consists of an inner medulla and outer cortex with indistinct boundaries. The medulla contains the blood vessels and nerves, while the cortex is occupied by developing follicles. Visible in this ovary are follicles in various stages of development. Also visible is a corpus luteum, the remnants of a follicle that has burst and sent its ovum into the genital tract. What is the fate of the follicles that do not release their ovum into the oviduct? What two hormones are capable of maintaining the corpus luteum?