Female physiology Regulation of Hormone Secretion during the late Follicular phase of the Menstrual Cycle and during the luteal ph f th Cycle Positve Negative feedback feedback FSH LH surge LH Late follicular phase Maturation of dominant Causes ovulation follicle Estrogen secretion Causes corpus luteum increases markedI formation Estrogen Estrogen a progesterone Uterine epithellum hypertrophies, forming Uterine epithelium proliferates al tubular glands and secretes a small amount of uterine fluid