Advertisements
Advertisements
प्रश्न
Describe briefly the ways how a mammalian embryo is protected
Advertisements
उत्तर
The mammalian embryo is protected by two sacs:
(a) The chorion
(b) The amnion, which contains the amniotic fluid to protect the embryo from shocks. The embryo-is also protected by the thick, muscular wall of the uterus.
APPEARS IN
संबंधित प्रश्न
What is the significance of amniotic fluid?
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 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?
Differentiate between:
Follicle and corpus luteum
What is Placenta?
How is Placenta formed? What are its functions?
Give Technical Term:
The period of intrauterine development of the embryo.
Complete the following sentences with appropriate word:
The expulsion of the fetus from the body to the mother in a human female is called __________.
Placenta produces certain hormones.
Mother's blood flows into the foetus through placenta.
