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प्रश्न
What changes are observed in the uterus if fertilisation does not occur?
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उत्तर
If fertilisation does not occur, the thickened and spongy lining of uterus slowly breaks down and comes out through the vagina as blood and mucous, thus menstruation occurs.
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संबंधित प्रश्न
Name the function of the following:
Endometrium
Differentiate between the following pair:
Uterus and vegina
Give appropriate term for the following:
The onset of reproductive phase in a female.
Name the Following
The term used when beard and mustache appear, harshening of voice, broadening of shoulders, etc. takes place.
Name the Following
The female copulatory organ in humans.
Give Technical Term:
Name the connective tissue surrounding the ovary.
Complete the following sentences with appropriate word:
A hormone secreted in a female to facilitate parturition is ________.
How many lobes are generally present in each mammary gland?
Identify the odd one from the following.
Ovulation occurs under the influence of ______.
Which of the following is correct about mammalian testes?
The external genitalia of the human female is called ______.
The opening of the vagina is often covered partially by a membrane called ______.
To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.
For subject 2 it is observed that the peak for hormone B has reached the plateau stage. After approximately how much time will the curve for hormone B descend?
The embryo in humans gets nutrition from the mother’s blood with the help of a special tissue called ______
Which among the following is not the function of testes at puberty?
- formation of germ cells
- secretion of testosterone
- development of placenta
- secretion of estrogen
How does fertilisation take place? Fertilisation occurs once in a month. Comment.
One mature ovum is released once every ______ days.
Statement I: The presence or absence of hymen is not a reliable indicator of virginity.
Statement II: The hymen is torn during the first coitus only.
In the light of the above statements, choose the correct answer from the options given below:
After puberty, how often do the ovaries release one ovum?
