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प्रश्न
Given below is a diagram of the female reproductive system of a human being
(i) Name the parts numbered 1 to 6.
(ii) Normally after how many days does an ovary release an egg?
(iii) Where are the sperms released during coitus?
(iv) What do the sperms do after being released?
(v) What is the function of the organ numbered 5?
(vi) How many days does it normally take from the fertilization of the egg up to the birth of the baby?
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उत्तर
(i)
1. Vagina
2. Right ovary
3. Ovarian funnel
4. Oviduct
5. Uterus
6. Cervix.
(ii) Normally the ovary releases one egg every 28 days by the rupture of the Graffian follicle.
(iii) The sperms are released by the penis in the vagina near the cervix.
(iv) The sperms swim up the vagina to enter through the cervix into the uterus and up into the oviduct where it meets the ovum.
(v) The function of the uterus is for the protection and nourishment of the embryo during the period of gestation.
(vi) The period of gestation is 266-280 days after which the fetus is expelled.
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संबंधित प्रश्न
All are internal genitalia in females. EXCEPT ______.
To produce 400 seeds, the number of meiotic divisions required will be ______
Where does fertilization take place?
Tubectomy is carried out by blocking the ______
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.
Select the correct sequence of various physical and chemical events that take place during fertilisation.
P. Fusion of cortical granules with the plasma membrane of secondary oocyte.
Q. Formation of fertilization cone to receive sperm.
R. Release of sperm lysin from acrosome.
S. Mixing up of chromosomes of a sperm and an ovum.
Capacitation occurs in:
______ receives the sperms and acts as a birth canal during childbirth.
Name these:
2 hormones secreted from the corpus luteum.
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.
Leydig cells : Testosterone : ______ : Oestrogen.
Distinguish between the following pair:
Spermatogenesis and oogenesis
