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Question
Describe briefly the ways how a mammalian embryo is nourished
Solution
The mammalian embryo is nourished by the nutrients which diffuse through the placenta of the mother to pass through the umbilical cord to the embryo.
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RELATED QUESTIONS
Name the following:
The body part in which the embryo develops.
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 | ………………… |
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’?
Give Technical Term:
The part in the uterus which is concerned with the supply of nutrition from the mother to the fetus.
Write the functional activity of the following structure:
Uterus
Write the functional activity of the following structure:
Amnion
During pregnancy, which hormones are secreted by the placenta?
Which of the following hormones is produced by ovary?
Write one sentence using the following term pertaining to reproduction in humans.
Placenta
Placenta produces certain hormones.
