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प्रश्न
Describe the functions of Amnion
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उत्तर
Amnion: Amnion contains the amniotic fluid which surrounds the embryo.
This fluid protects the embryo from physical damage.
It maintains even pressure all around the embryo.
It also prevents sticking of foetus to amnion.
संबंधित प्रश्न
What is the significance of amniotic fluid?
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 |
Given below are the names of certain stages/substances related to reproduction and found in human body. Answer the questions related to them.
Gestation
• What is its meaning?
• How long does it normally last?
Describe the functions of placenta
Describe briefly the ways how a mammalian embryo is respires
Give Technical Term:
The part in the uterus which is concerned with the supply of nutrition from the mother to the fetus.
Complete the following sentences with appropriate word:
The placenta is ________permeable
Match the respiratory surfaces to the organisms in which they are found.
| Organ/ cells | Hormones | ||
| (i) | Corpus luteum | (a) | HCG |
| (ii) | Leydig's cells | (b) | Estrogen |
| (iii) | Placenta | (c) | Progesterone |
| (iv) | Graafian follicle | (d) | Testosterone |
Mention any two functions of the human foetal placenta.
Write one sentence using the following term pertaining to reproduction in humans.
Placenta
