Question

What do graafian follicles contain?

Answer 1

The primary units of the female reproductive system are ovarian follicles. Each one is made up of a single oocyte (immature ovum or egg cell). These structures grow and expand on a regular basis, culminating in the ovulation of a single competent oocyte in humans. They also include granulosa cells and the follicular theca.

Complete answer:
When a primary follicle matures, the mass of the ovum and the surrounding follicular cells increases. The follicle generates two layers that cover its outer surface as it grows. FSH stimulates the thecal cells, while LH causes the granulosa cells to release oestrogen. A single oocyte exists in each follicle.
The corpus luteum is formed when the mature (graafian) follicle ruptures, and the granulosa/follicle cells that remain in the ovary release both oestrogen and progesterone. If the corpus luteum becomes pregnant, it will continue to function as an endocrine gland throughout the pregnancy.
FSH promotes the growth of the graafian follicle, a tiny vesicle in the female mammal's ovary that contains an egg. It encourages the growth of testicular tubules and sperm differentiation in males.
Some of them will be able to progress to one or more of the subsequent phases in the next 50 years due to the effect of sex hormones. Although some of this extra growth can occur before birth and up until adolescence, the majority of it happens once a regular hormonal cycle is established. The last phase of a tertiary follicle's maturation into a big follicle ready to rupture, in particular, is reserved for the time of regular cycles.

Note:-
Once in a month, one of the ovaries releases a mature egg (ovum) known as an oocyte. The nucleus of such an oocyte is called a germinal vesicle. ensures that a fertilized oocyte matures and is released. It also gives rise to the corpus luteum, which aids and supports embryo implantation. The follicle must develop, ovulate, and luteinize in order for these processes to take place.