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प्रश्न
Describe briefly the ways how a mammalian embryo is nourished
उत्तर
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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संबंधित प्रश्न
The exact location of the Amnion
Choose the odd one in each of the following :
Relaxin; cervix dilated; amniotic sac ruptures; child birth; follicle.
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 | ………………… |
Differentiate between:
Amnion and allantois
The circulatory system of the fetus and that of the mother are never connected directly. What are the advantages?
Give Technical Term:
The period of intrauterine development of the embryo.
Complete the following sentences with appropriate word:
The embryo inside the uterus is protected from jerks or mechanical shocks by ________
In human beings, the placenta is formed by ______.
Name the following:
Two hormones secreted from placenta.
Heart and blood vessels have been formed by the end of five weeks of pregnancy.
