Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle ?

High concentration of Estrogen

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Low concentration of FSH

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Low concentration of LH

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High concentration of Progesterone

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Solution

The correct option is A High concentration of Estrogen
The follicular cell proliferates and forms the mature follicle called Graafian follicle. The follicular cells secrete estrogen as they mature. The high estrogen level stimulates the pituitary gland to secrete LH (Leutenizing hormone). High level of LH triggers ovulation & promotes the development of corpus luteum by the rupture of Graafian follicle.

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