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प्रश्न
Explain the process of birth in human beings.
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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.
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संबंधित प्रश्न
Name the human male reproductive organ that produces sperms and also secretes a hormone. Write the functions of the secreted hormone.
Describe placenta structure.
Write the functions of the following parts in human female reproductive system:-
(i) Ovary
(ii) Oviduct
(iii) Uterus
State the main function of the Sperm duct.
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.
Which part of the human body produces ova?
What do the ovaries in a woman produce?
Write the names of male sex hormone?
Which structures in human female are equivalent to the following structures in the male?
- testes
- vas deferens
- penis
In each case say in what respect the structures are equivalent?
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?
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?
The vagina is a muscular tube.
Name the following:
Organ where implantation takes place.
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Acrosome
(ii) Ovulation (iii) Sperm (iv) Menopause (v) Implantation (vi) Fertilization (vii) Contraception in males |
(a) Male gamete
(b) Oviduct (c) Uterus (d) Spermatozoa (e) Progesterone (f) Stoppage of the menstrual cycle (g) Sudden change in genes |
Choose the Odd One Out:
The membranous cover of the ovum at ovulation is ______.
Human eggs are______.
Gestation in human reproduction refers to which of the following processes?
