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How is the name follicle-stimulating hormone appropriate for its function?
In females, in the ovary FSH stimulates the growth of immature Graafian follicles to maturation. Graafian follicles are the mature follicle. Primary follicles mature to Graafian follicles. As the follicle grows, it releases inhibin, which shuts off the FSH production.
What are the stages of follicle development?
Follicle development occurs in several stages: primordial follicle, primary follicle, secondary follicle, preantral follicle, antral follicle, and mature (Graafian) follicle. Each stage involves specific changes in the follicle and oocyte as they mature towards ovulation.
Are all ovarian follicles at the same stage of development?
No, ovarian follicles are at different stages of development within the ovary. They go through various stages such as primordial, primary, secondary, and Graafian follicles. This allows for a continuous supply of eggs for ovulation.
What would happen if production of FSH by the anterior pituitary was significantly reduced?
In women, a lack of follicle stimulating hormone leads to incomplete development at puberty and poor ovarian function (primary ovarian failure). In this situation ovarian follicles do not grow properly and do not release an egg, thus leading to infertility. Since levels of follicle stimulating hormone in the bloodstream are low, this condition is called hypogonadotrophic-hypogonadism.
What stimulates maturation of a primary follicle at puberty?
The increase in levels of follicle-stimulating hormone (FSH) that occurs at puberty stimulates the maturation of a primary follicle in the ovary. FSH acts on the granulosa cells of the primary follicle, promoting their proliferation and differentiation. This leads to the growth and development of the primary follicle into a secondary follicle.
What are the primordial follicles stimulated to develop into primary follicles by the hormone called?
Primordial follicles are stimulated to develop into primary follicles by the hormone called follicle-stimulating hormone (FSH), which is released by the pituitary gland. FSH plays a crucial role in promoting the growth and maturation of ovarian follicles in the ovary.
What does follicle stimulating hormone promote the development of?
primary follicle/oocyte
What is contained in each ovarian follicle?
various follicles one can find inside a typical ovary are primordial/primary/secondary follicles, mature vesicular, rupturing, mature-corpus luteum as well as corpus albicans
What surrounds a primary oocyte?
follicle cells
What are the cells stored in the ovaries?
The principal cells that the human ovaries produce are the Graafian Follicles.An infant ovary produces the primordial ovum.Pre-Puberty Follicle grows and changes during the Post Puberty phase.Adult ovary produces primary follicles that undergo change as per the ovulatory cycle.Aging ovary shows senile atrophy.Primary follicles undergo changes during the ovulatory cycle.Hence, you findRipening folliceMature Graafian follicle,Ruptured follicle is the Corpus hemorrhagicumOvumMature Corpus Luteum,Corpus Luteum of Pregnancy,Involuting Corpus Luteum.Dr. Ashok KopardayMedical Consultant
What forms part of the primary follicle in the ovary?
A primary follicle consists of a primary oocyte surrounded by a single layer of enlarged cuboidal epithelium. Recall that previously, there was a primary oocyte in a primordial follicle surrounded by a thinner single layer of squamous follicular cells.
What type of cells would be found in primary follicle?
In a primary follicle, the main cell types include oocytes and granulosa cells. The oocyte is the immature egg cell, while the granulosa cells surround and support the oocyte, providing nutrients and hormones. Additionally, the primary follicle may also contain theca cells, which are involved in hormone production and support the follicle's development.
