How to draw embryo
The growing embryo forms four membranes-Chorion, Amnion, Allantois and Yolk sac.Chorion establishes connection with the walls of the uterus and helps in the supply of nutrients to the embryo and in the removal of wastes from the embryo. Amnion forms a sac like structure around the embryo. The space between the amnion and embryo is filled with a fluid called Amniotic fluid.Amnion and amniotic fluid give protection to the embryo against mechanical shocks. Amnion is retained till the child is born as the embryo grows the amnion also grows in size. Another sac like structure called Allantois is continuous with urinary bladder of growing embryo. Yolk sac usually supposed to contain reserve food material, but in human embryo it is vestigial and useless.
1.Draw tiny human embryo as shown.
2.Make Amnion around it as shown.
3.Draw Yolk sac and Allantois as shown.
4.Draw one more membrane around as shown, it is Chorion
5.Draw tiny projections called chorionic villi as shown and label the parts.Read more here.
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