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प्रश्न
Write the specific location of the following:
Placenta
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उत्तर
The placenta is a disc-like structure attached to the uterine wall.
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संबंधित प्रश्न
Name the following:
The fluid surrounding the developing embryo
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?
What changes occur at the time of birth?
Describe briefly the ways how a mammalian embryo is respires
Complete the following sentences with appropriate word:
The period of complete development of the fetus until birth is termed ______.
During pregnancy, which hormones are secreted by the placenta?
In human beings, the placenta is formed by ______.
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 |
How are carbon dioxide and urea, excreted by the foetus, removed?
Amniotic fluid serves to provide oxygen to the foetus.
