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प्रश्न
The below diagram represents the vertical view of the human female reproductive system.
(i) Label the parts indicated by the guidelines 1 to 8.
(ii) How does the uterus prepare for the reception of a zygote?
(iii) What happens to the uterus if fertilization takes place?
(iv) What happens to the uterus if fertilization has failed to take place?
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उत्तर
(i)
1. Oviduct
2. Funnel of oviduct
3. Ureter
4. Vagina
5. Ovary
6. Uterus
7. Bladder
8. Urethra
(ii) The endometrium lining and glands of the uterine wall grow to prepare the uterus for the reception of a zygote.
(iii) If fertilization takes place, the embryo is implanted in the uterus. The uterus wall develops a placenta which attaches the embryo to the uterus and the uterine wall expands to accommodate the growing embryo.
(iv) If fertilization fails to take place, menstruation takes place during which endometrium of the uterus is cast off. The capillaries and cells of this layer rupture and disappear.
संबंधित प्रश्न
Why is zona pellucid retained around the egg till it reaches the uterus?
Development of mammary glands is controlled by ____________.
Identify the labels (i, ii and iii) in the given diagram of the female reproductive system.
Which one is correct for mammalian testis?
Read the following and answer from given below:
During copulation, semen is released by the penis into the vegina. The motile sperms swim rapidly, fuse with the ovum in the ampullary region, resulting in fertilization. The haploid nucleus of sperm fuses with that of the ovum to form a diploid zygote.
In the female genital tract, sperms are made capable of fertilizing the egg. This phenomenon of sperm activation is called ______
In rabbits, humans and other placental mammals, fertilization occurs in ______.
Female reproductive organs and associated functions are given below in column A and B. Fill the blank boxes.
| Column A | Column B |
| Ovaries | Ovulation |
| Oviduct | a |
| b | Pregnancy |
| Vagina | Birth |
With a suitable diagram, describe the organisation of mammary gland.
Given below is a certain situation. Analyze and describe its possible impact on a person:
Placenta does not attach to the uterus optimally.
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:
