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प्रश्न
Explain the process of birth in human beings.
उत्तर
Birth:
- When the baby is grown completely, it begins to move down towards the vaginal passage.
- The opening of the cervix gradually opens, and the baby is released out through the vagina.
APPEARS IN
संबंधित प्रश्न
Draw a sectional view of human female reproductive system and label the part where
(i) eggs develop.
(ii) fertilisation takes place.
(iii) fertilised egg gets implanted.
If a woman is using a copper-T, will it help in protecting her from sexually transmitted diseases?
What could be the reasons for adopting contraceptive methods?
The diagram shown below is the longitudinal section of a testis of man. Study it carefully and answer the questions that follow
(i) Label the parts numbered 1 to 3 in the diagram.
(ii) In which part of the testis are the sperms produced?
(iii) State the functions of the parts labelled 1 and 3 in the diagram.
Give scientific reasons: When an ovum gets fertilized, menstrual cycle stops temporarily in a woman.
Match the Column:
| no | Column A | Column B |
| 1 | Allele | Control of automobile exhaust |
| 2 | Leydig cells | Tourniquet |
| 3 | Utriculus | Alternate forms of genes |
| 4 | Snake bite | Dynamic equilibrium |
| 5 | Euro IV norms | Testosterone |
| Sudden change in genes | ||
| Static equilibrium |
State the main function of the Sperm duct.
The site of maturation of human sperms is the
Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong :
Prostate gland, Cowper’s gland, seminal vesicle, seminiferous tubules
Give biological explanations for All the food chains begin with green plants.
What are the male sex cells in humans called?
Which part of the human body produces ova?
What do the testes in a man produce?
Why does menstruation occur? Describe the menstrual cycle in human females (or women).
Which structure in human female is equivalent to the vas deferens in the male?and in what respect the structures are equivalent?
Which structure in human female is equivalent to the penis in the male?and in what respect the structures are equivalent?
What is the role of seminal vesicles and prostrate gland in human male reproductive system?
What is ovulation? How often does it happen in human females?
In human males, the testes lie in the scrotum outside the body because it helps in the
(a) process of mating
(b) formation of sperms
(c) easy transfer of sperms
(d) all the above
Given below is a diagram of two systems together in the human body.
 |
- Name the systems.
- Name the parts numbered 1-10.
- Describe the functions of the parts 3, 4, 5 & 6.
- What will happen if the part 3 on both sides gets blocked?
Trace the path of sperms from where they are produced in human body to the exterior.
In male and female reproductive system of human, ______ gland is same.
Sketch and label human female reproductive system.
Is the woman responsible for sex-determination of child? Justify your answer.
Diagram shows the reproductive system of female human beings:
(i) Name the parts numbered 1 to 14.
(ii) Normally, after how many days does an ovary release an egg?
(iii) Where are the sperms released during coitus?
(iv) What is the role of sperms after their ejaculation in vagina?
(v) What is the function of the organ numbered 5?
(vi) What is the gestation period in human?
Give appropriate term of the following:
The onset of reproductive phase in a young female.
Choose the correct answer:
Binary fission is a method of __________
Give the function of the following:
Uterus
Give the functions of the following:
Vagina
Define the following:
Asexual reproduction
Define the following:
Monoceious
Differentiate
Sexual Reproduction and Asexual Reproduction.
The below diagram is of a developing embryo is a mother’s womb:
(i) Write the functions of the placenta, amnion, and umbilical cord.
(ii) How are the waste products of a fetus removed?
(iii) What is the gestation period?
Choose the Odd One Out:
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Write the difference between C and H.
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will NOT be transported form ______
Testosterone is produced by:
During adolescence, reproductive phase starts and ______.
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.
