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प्रश्न
Placenta produces certain hormones.
पर्याय
True
False
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उत्तर
This statement is True.
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संबंधित प्रश्न
What is the significance of amniotic fluid?
Name the following:
The canal through which the testes descend into the scrotum just before birth in human male child.
Complete the following table by writing the name of the structure or the function of the given structure:
| Structure | Function | ||
| 1 | Corpus luteum | 1 | …………… |
| 2 | ……………. | 2 | Produces male gametes in mass |
| 3 | Placental disc | 3 | …………………….. |
| 4 | . ……………. | 4 | Increases the force in uterine contractions during child birth |
| 5 | Umbilical cord | 5 | …………………. |
| 6 | Fallopian tube | 6 | ………………… |
What changes occur at the time of birth?
Give Reasons
The full-grown human embryo respires but does not breathe.
The diagram given below shows an embryo in the uterus of mammal. Label the parts indicated.
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 |
Amniotic fluid serves to provide oxygen to the foetus.
Write the specific location of the following:
Placenta
Distinguish between the following pair:
Placenta and umbilical cord
