What is the Difference Between Graafian Follicle and Corpus Luteum?

The Graafian follicle and the corpus luteum are two distinct stages in the female reproductive cycle. Here are the main differences between them:

Graafian Follicle:

1. It is a fully grown follicle that contains the secondary oocyte (immature egg cell).
2. It is developed and maintained by the Follicle Stimulating Hormone (FSH).
3. The Graafian follicle secretes estrogen.
4. It ruptures during the ovulatory phase, releasing the ovum.

Corpus Luteum:

1. It is a temporary endocrine gland formed after the release of the secondary oocyte during ovulation.
2. It is developed and maintained by the Human Chorionic Gonadotropin (HCG) hormone.
3. The corpus luteum secretes progesterone, a hormone that prepares the uterus for pregnancy.
4. It disappears after it is no longer needed to produce progesterone.

In summary, the Graafian follicle is a mature follicle that contains the egg to be released during ovulation, while the corpus luteum is a temporary gland structure formed after the release of the secondary oocyte. The Graafian follicle secretes estrogen, and the corpus luteum secretes progesterone.

Comparative Table: Graafian Follicle vs Corpus Luteum

Here is a table comparing the differences between a Graafian follicle and a corpus luteum:

In summary, a Graafian follicle is a mature follicle that contains the egg to be released during ovulation, while a corpus luteum is a temporary endocrine structure formed after the release of the secondary oocyte. The Graafian follicle secretes estrogen and is developed and maintained by FSH, whereas the corpus luteum secretes progesterone and is developed and maintained by HCG.