Advertisements
Advertisements
प्रश्न
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
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
Draw a neat and well-labeled diagram showing T.S. of the ovary and describe the menstrual cycle in human females.
Briefly describe the secretory phase of the menstrual cycle.
Explain the role of hormones during the menstrual cycle.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Menarche is the stoppage of menstruation.
All occur during follicular phase of menstrual cycle, EXCEPT
Secretion of progesterone by corpus luteum is initiated by ______.
Mainly which type of hormones control the menstrual cycle in human beings?
When does the corpus luteum degenerate?
Write a short note on Secretory Phase.
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Follicular phase: 5-12 days:: Luteal phase : ______ days.
