embryology

Question 1

embryology and Feotus

Answer 1

fetus — 3rd month to birth
embryo– fertilisation upto 2nd month

Question 2

endoderm

Answer 2

cells of inner cell mass differentiate as flattened cells and line the free surface

Question 3

ectoderm

Answer 3

columnar cells remaing cell mass

Question 4

period and formation structure
2nd day of fertilisation

Answer 4

the embryo (2 celled stage )

Question 5

period and formation structure
3rd day of fertilisation

Answer 5

morula

Question 6

period and formation structure
4th day after fertilisation

Answer 6

blastocyst

Question 7

8 th day fertization period and formation structure

Answer 7

bilaminar disc

Question 8

14th day period and formation structure

Answer 8

prochondrial plate and primitive streak

Question 9

16 th day period and formation structure

Answer 9

intra embryonic mesomeric

Question 10

placenta formation decidua

Answer 10

Decidua basalis - Part of the decidua where placenta is to be formed.

• Decidua capsularis - It separates the embryo from the uterine lumen

• Decidua parietalis - It is the part lining the rest of the uterine cavity.

Question 11

The placenta is formed by two sources,

Answer 11

Fetal/component - Chorion frondosum
Maternal component - Deciduo basalis