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प्रश्न
Give scientific reasons: When an ovum gets fertilized, menstrual cycle stops temporarily in a woman.
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उत्तर
In case of fertilisation of the ovum by a sperm, the corpus luteum persists and continues to secrete progesterone in the body thus maintaining its high levels. The presence of progesterone prevents the maturation of another ovum, thus temporally stopping the menstrual cycle.
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संबंधित प्रश्न
Suggest three contraceptive methods to control the size of human population, which is essential for the health and prosperity of a country. State the basic principle involved in each.
State the main function of the Leydig cells
Write the names of male sex hormone?
fertilisation in humans can occur only once in a month. Why?
Which structure in human female is equivalent to the testes in the male?and in what respect the structures are equivalent?
Give appropriate term of the following:
The onset of reproductive phase in a young female.
Choose the correct answer:
When pregnancy does not occur, the life of corpus luteum is about _____________
Define the following:
Parthenogenesis
How does human sperm locomote?
Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:
Testis, Urethra, Sperm duct, epididymis.
