GASTRULATION

Question 1

process that gives rise to the 3 germ layer

Answer 1

gastrulatiom

Question 2

gastrula means?

Answer 2

little stomach

Question 3

origin of all organs

Answer 3

gastrulation

Question 4

when the new cells in ICM ruptures it migrate and forms new cell layer called?

Answer 4

hypoblast

Question 5

hypoblast is located in the?

Answer 5

trophoblast

Question 6

the formation of hypoblast forms the?

Answer 6

yolk sac

Question 7

the remaining epiblast is called?

Answer 7

epiblast

Question 8

where does the primitive streak lies?

Answer 8

epiblast surface

Question 9

it js formed as differential cell growth generates a pair of
ridges separated by a depression

Answer 9

primitive streak

Question 10

a space deep to the primitive streak

Answer 10

coelom

Question 11

coelom is temporarily filled by?

Answer 11

mesoderm that undergoes cavitation

Question 12

initial migrating cells joins the hypoblast layer to form the?

Answer 12

endoderm

Question 13

majority of the migrating cells enter the coelom as (1) _____ and becomes (2)_____

Answer 13

1. primary mesenchyme
2. mesoderm

Question 14

the lateral mesoderm cavitates that splits into somatic mesoderm that joins with the (1) _____ and becomes the (2) ______ that forms the (3)_____

Answer 14

1. ectoderm
2. somatopleure
3. body wall

Question 15

the lateral mesoderm cavitates that splits into splanchnic mesoderm that joins with the (1) _____ and becomes the (2) ______ that forms the (3)_____

Answer 15

1. endoderm
2. splanchnopleure
3. wall of gut

Question 16

the remaining epiblast becomes the?

Answer 16

ectoderm

Question 17

forms the epidermis of skin, epithelium of oral, nasal cavities, nervous system, sense organs

Answer 17

ectoderm

Question 18

forms the skeletal muscle, connective tissue including bone components of
circulatory, urinary, genital systems

Answer 18

Mesoderm

Question 19

forms mucosal epithelium and glands of respiratory and digestive system

Answer 19

endoderm