Development of gut tube

Question 1

what forms the forgut and the hind gut

Answer 1

The cephalic and caudal parts of the embryo

Question 2

how is the primitive gut formed

Answer 2

Folding of the embryo leads to a portion of the endoderm lined yolk sac cavity being
incorporated into the embryo to form the primitive gut.

Question 3

what is the role of the vitelline duct

Answer 3

temporaritly connets the middle part to the yolk sac

Question 4

what remains outside the embryo after Folding of the embryo leads to a portion of the endoderm lined yolk sac cavity being
incorporated into the embryo to form the primitive gut.

Answer 4

Two other portions of the

endoderm lined cavity called the yolk sac and the allantois