Q. 85.0( 3 Votes )

Given below is a

Answer :

A: LH and FSH (Follicle Stimulating Hormone)

B: LH (Luteinizing hormone)

C: Progestrone

To understand why that is so, observe the following diagram

1. The mature follicle is also known as the Graafian follicle. As in evident from the diagram above, during this phase i.e. the follicular phase, the primary follicles in the ovary grow and become a Graafian follicle. These changes are induced by changes in the levels of pituitary and ovarian hormones: LH and FSH and Estrogen. LH and FSH levels increase during the follicular phase, which stimulates the development of follicles.

2. During Ovulation, the mature follicle releases the Ova. This happens because of a surge in LH levels.

3. The luteal phase follows ovulation. During the luteal phase, the Graafian follicle transforms into the corpus luteum. The corpus luteum secretes large amounts of progesterone and the surge of progesterone can be observed in the diagram given above.

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