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प्रश्न
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
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उत्तर
Follicle-stimulating hormone (FSH) and luteinising hormone are pituitary hormones. Oestrogen and progesterone are ovarian hormones.
Functions of pituitary and ovarian hormones:
| Hormone | Functions |
| FSH | i. Stimulates the ovarian follicles to secrete oestrogen. ii. Stimulates the proliferation of the endometrium of the uterine wall. iii. Stimulates the maturation of Graafian follicles. |
| LH | i. Stimulates the release of ovum. ii. Develops corpus luteum and secretion of progesterone. iii. Maintains pregnancy |
| Oestrogen | i. Controls the changes in the secondary sex organs in the first half of the menstrual cycle. ii. Stimulates growth, maturation and functions of secondary sex organs. iii. Repairs the damaged tissues of the uterus and fallopian tubes after menstruation. iv. Stimulates the maturation of ova development of uterine lining and mammary glands. |
| Progesterone | i. Facilitates the preparation of the endometrium for implantation. ii. Inhibits the contraction of the uterus and the development of new follicles. |
संबंधित प्रश्न
Name and explain the role of the inner and middle walls of the human uterus.
Name the function of the following:
Corpus luteum
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Explain the changes that occur in the uterus simultaneously in anticipation.
Lack of which hormone results in menstrual flow?
Identify the phase of the menstrual cycle during which there is a peak in the level of progesterone.
If the corpus luteum is present in the ovary even after 72 hours after ovulationit indicates that ______.
On the fourteenth day of the menstrual cycle the female gamete released is _____.
Ovulation in the human female normally takes place during the menstrual cycle ______.
The main function of mammalian corpus luteum is to produce ______.
The first menstruation is called ______.
