Arrange the following events in the ovarian cycle in the order in which they occur.

1.Luteinizing hormone secreted by the anterior pituitary gland
2.Follicle stimulating hormone (FSH) secreted by the anterior pituitary gland
3.Ovum develops in the follicle
4.Ovulation of mature ovum
5.Corpus luteum develops
6.Progesterone secreted by corpus luteum
7.Estrogen secreted by follicle cells​