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प्रश्न
Why is zona pellucid retained around the egg till it reaches the uterus?
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उत्तर
Zona pellucida prevents the implantation of the blastocyst at an abnormal site such as a fallopian tube and it keeps trophoblast cells unexposed till it reaches the uterus. Hence, zona pellucida is retained around the egg until it reaches the uterus.
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संबंधित प्रश्न
Give appropriate term of the following:
The rupture of follicle and release of ovum from the ovary.
Explain the term Graffian follicle.
Write the functional activity of the following structure:
Fallopian tubes
Match the parts of the given figure with the correct option.
| 1 | 2 | 3 | 4 | 5 | |
| a. | Fallopian tube | Oviduct | Uterus | Cervix | Vagina |
| b. | Oviduct | Cervix | Vagina | Ovary | Vas deferens |
| c. | Ovary | Oviduct | Uterus | Vagina | Cervix |
| d. | Fallopian tube | Ovary | Cervix | Uterus | Vagina |
Identify the labels (i, ii and iii) in the given diagram of the female reproductive system.
Where does the ovum receive the sperm?
In oocyte secondary maturation occurs in ______.
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 ______
The______ is also called the womb.
Clitoris is equivalent to the male penis.
