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प्रश्न
The diagram given below is that of a developing human foetus in the womb. Study the same and then answer the questions that follow:
- Name the parts '1' to '5' indicated by guidelines.
- What term is given to the period of development of the foetus in the womb?
- How many days does the foetus take to be fully developed?
- Mention two functions of the parts labelled ‘2’ other than its endocrine function.
- Name the hormone (anyone) produced by the part labelled ‘2’.
- What is the function of the part marked ‘3’?
उत्तर
-
- Umbilical cord
- Placenta
- Amniotic fluid
- Cervix
- Uterus wall
- Gestation period.
- 280 days.
- It provides nutrition and the exchange of respiratory gases by diffusion.
- Prevents foetuses from jerks and shocks. It also prevents the foetus from sticking to the uterine wall.
Notes
Student should refer their answer according to their question
APPEARS IN
संबंधित प्रश्न
The exact location of the Amnion
Name the following:
The canal through which the testes descend into the scrotum just before birth in human male child.
Match the items in column I with those in column II and write down the matching pairs (some may not match)
| Column I | Column II | ||
| a | Acrosome | 1 | An embryo which looks like human baby |
| b | Gestation | 2 | Luteinizing hormone |
| c | Menopause | 3 | ovum producing cells |
| d | Foetus | 4 | complete stoppage of menstrual cycle |
| e | Oogenesis | 5 | spermatozoa |
| f | Ovulation | 6 | Complete stoppage of menstrual cycle. |
| 7 | Time taken by a fertilized egg till the delivery of baby |
Differentiate between:
Amnion and allantois
What is Placenta?
Describe briefly the ways how a mammalian embryo is respires
Explain the term Fetus
Complete the following sentences with appropriate word:
The embryo inside the uterus is protected from jerks or mechanical shocks by ________
Does the foetus inside the mother's uterus breathe?
Write the specific location of the following:
Placenta
