FSH has two functions

Answer 1

One of the functions of FSH in the menstrual cycle is for development of the primary follicle during the first few days of the menstrual cycle, and there is a small peak of this hormone between approximately days 1-6.

As oestrogen levels increase (oestrogen is secreted by the theca interna of the secondary oocyte) this feeds back negatively, thus decreasing the level of FSH until approximately day 12. Oestrogen levels reach a peak between days 11 and 12, and then start to decline. As levels of oestrogen decline, FSH levels start to increase once more, and there is a small peak of FSH on day 14 when ovulation occurs.

FSH is responsible also for the choice of the dominant follicle; a woman has many follicles, but only one (or 2 if there are dizygotic twins) will mature. This appears to depend on the number of FSH recpetors on the surface of the follicle, i.e the follicle that has most receptors will be the one which matures.

To answer your question, then, I would say that the 2 main functions of FSH in the menstrual cycle are:

1) The initiation of follicular development, and general development of the primary follicle

2) Choice of the dominant follicle, i.e the follicle which will be ovulated.

I hope that helps: I am currently trying to answer the same question, and struggled to find a second function of FSH other than the initiation of follicular development!

Answer 2

Follicle stimulating hormone is secreted by the anterior pituitary gland to regulate body activities that are directly related to puberty and reproduction. Functions of this hormone are:

• Coordinates with luteinizing hormone to stimulate puberty
• Stimulates the release of estrogen during menstrual cycle

Answer 3

Yes it does