Complete the Concept Map to describe embryonic development including the formation of the primary germ layers and the extraembryonic membranes.
Drag the appropriate labels to their respective targets
1. allantois and yolk sac
2. hypoblast cells
3. piblast cells
4. blastocyst
5. mesodernm
6. chorion
7. amnion
8. ectodermm
9. endoderm
A. include(s) the outer B. form(s) a bilayered C. form(s) a bilayered
trophoblast, which help embryonic disc, one layer embryonic disc, one
form extraembryonic of which is made of(s):_ layer of which is made of:_
membrane(s) called the:___

Blastocyst forms during the stage early embryonic developmental of mammals. The outer cell layer of the blastocyst is known as trophoblast. This outer cell layer gives rise to extra-embryonic membrane - chorion.

The epiblast leads to the development of ectoderm, mesoderm, endoderm known as the three germ layers. It also forms an extra-embryonic layer called the ambion. Yolk sac and allantois are formed with the help of hypoblast.

priyankatutor priyankatutor · Answer 2 · 2021-11-26T06:51:10+01:00

The development of the embryo is starts with the blastocyst which made two layers. These layers give rice to a complete new born.

Embryology:

It is the branch of science that deals with the development of embryo and classify the stages of development.

Blastocyst: It is a structure in early embryo which consist of inner cell and outer cell mass.
Inner cell mass give rise to different layer of embryo such ectoderm and mesoderm.
Outer cell mas give rise to chorion and amnion.
Chorion and amnion cover the embryo.
Mesoderm layer live rise to the muscles, and other organs.
Ectoderm give rise the nervous system.

Therefore, the development of the embryo is starts with the blastocyst which made two layers. These layers give rice to a complete new born.

To know more about embryology,

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