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Physiology

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Endocrinology

Question
38 out of 50
 

Hormone responsible for initiation of ovulation



A LH
B progesterone

C Estrogen
D Prolactin

Ans. A LH
  1. The process of ovulation is controlled by the hypothalamus of the brain and through the release of hormones secreted in the anterior lobe of the pituitary gland, luteinizing hormone (LH) and follicle-stimulating hormone (FSH).
  2. In the pre-ovulatory phase of the menstrual cycle, the ovarian follicle will undergo a series of transformations called cumulus expansion, which is stimulated by FSH.
  3. After this is done, a hole called the stigma will form in the follicle, and the ovum will leave the follicle through this hole.
  4. Ovulation is triggered by a spike in the amount of FSH and LH released from the pituitary gland.

Endocrinology Flashcard List

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