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प्रश्न
Distinguish between the following pair:
Placenta and umbilical cord
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उत्तर
Placenta: The Placenta is the intimate connection established between the foetal membranes and uterine wall, permitting the diffusion of nourishment from the mother's blood to that of the growing foetus and the disposal of wastes from the blood of the foetus to that of the mother.
Umbilical cord: A cord containing blood vessels connects the placenta with the foetus; this is called the umbilical cord.
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संबंधित प्रश्न
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 | ………………… |
Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.
Hyaluronidase.
- Is it an enzyme or simply a protein?
- What is its function?
Differentiate between:
Impotency and sterility
Name and describe very briefly, the stages in the development of human embryo.
Name the following:
The structure which connects the placenta and the foetus.
Give Technical Term:
Name a membrane that surrounds the fetus and secretes a protective fluid.
Complete the following sentences with appropriate word:
The expulsion of the fetus from the body to the mother in a human female is called __________.
Write one sentence using the following term pertaining to reproduction in humans.
Placenta
Write the specific location of the following:
Placenta
