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प्रश्न
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?
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उत्तर
(i)
- Fallopian tube
- Funnel like opening
- Ovary
- Uterus
- Sacrum
- Rectum
- Cervix
- Anus
- Vagina
- Front of pelvis
- Bladder
- Muscular uterine wall
- Muscular wall of abdomen
- Peritoneum
(ii) Normally, after 28 days an ovary releases an egg.
(iii) During coitus, sperm are released in the vagina.
(iv) After ejaculation in vagina, sperms undergo fertilization where it fuses with an ovum of female to form zygote.
(v) The function of sacrum is to protect the pelvic organs or reproductive organs of female.
(vi) The gestation period in human is 280 days.
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संबंधित प्रश्न
Write the functions of the following organs of reproduction:
a. Ovaries
b. Seminal vesicle and prostate glands
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.
State the changes that take place in the uterus when Female gamete/egg is not fertilised
Give scientific reasons: Mature erythrocytes in humans lack nucleus and mitochondria
Where does a fertilised ovum develop into a baby in the human body?
Gender of child is determined by the male partner of couple. Explain with reasons whether this statement is true or false.
Define the following:
Clone
Answer the following question:
Why are family planning measures needed in our country?
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?
A zygote is formed by the fusion of a male gamete and a female gamete. The number of chromosomes in the zygote of a human is ______.
