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प्रश्न
What changes are observed in the uterus if fertilisation does not occur?
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उत्तर
If fertilisation does not occur, the thickened and spongy lining of uterus slowly breaks down and comes out through the vagina as blood and mucous, thus menstruation occurs.
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संबंधित प्रश्न
Where in the fallopian tube does fertilization occur in humans?
Sketch the labelled diagram.
Human female reproductive system.
Name the following:
Organ producing ovum.
Draw a sectional view of the human ovary. Label the following parts :
(ii) Secondary oocyte
(iii) Graafian follicle
(iv) Corpus luteum
Differentiate between the graafian follicle and corpus luteum.
Explain the term Tubectomy.
State names of organs in the female reproductive system.
Observe the diagram and answer the following questions.
- Label the indicated parts 1, 2 and 3 in the diagram.
- Where the fertilization of ovum occurs?
- Where does the embryo get implanted after fertilization?
Complete the table.
| Sex/Gender | Reasons of infertility |
| Female | |
| Male |
Which of the following are accessory ducts of female reproductive system?
Penis is homologous to ____________.
Which of the following statements regarding human reproduction is INCORRECT?
How many lobes are generally present in each mammary gland?
Identify the layer of the uterine wall that undergoes changes during menstrual cycle.
When both ovaries are removed from rat which hormone is decreased in blood?
Fertilization occurs in human females when the sperms and ovum reach simultaneously at ______
The ______ is also called the womb.
The figure given below is the human female reproductive system. Study the same and answer the following questions.
- Label the guidelines 1 to 6 shown in the figure.
- What is the normal gestation period in human?
- Where are the sperms released during coitus?
- Write two important functions of part 2.
- Mention the technical term for the fixing of developing zygote to the uterine wall.
Which of the following is not a component of Fallopian tube?
How many mammary lobes does each breast have?
