As a follicle matures, its rising oestrogen output suppresses the secretion of FSH by the
- A. ovary itself
- B. anterior pituitary through negative feedback
- C. posterior pituitary
- D. hypothalamus releasing oxytocin
Explanation
Oestrogen feeds back on the anterior pituitary to reduce FSH, which prevents several follicles from maturing at once. This negative feedback keeps the cycle to a single dominant follicle in humans.