After the blastula stage what is the following stage of the embryonic development? How is the passage from blastula to the next stage called?
3What is the function of the vitellus in the vertebrate egg? How are these eggs classified according to the amount of vitellus within them?
3What are the main substances transferred from the mother to the fetus through the placenta and from the fetus to the mother?
3What is the cell division during the first stage of the embryonic development called? How is this stage characterized?
3After the morula stage what is the next stage? What is the morphological feature that defines that stage?
3
What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed?
What is notochord? How is this structure formed?
How yolk sac is formed?
After the morula stage what is the next stage?
What are the destinations of the archenteron and of the blastopore?
What are the archenteron?
What are extra embryonic membranes? Name these layers in vertebrates?
How does the embryo turn from gastrula into neurula? How is the neural tube formed?
Explain organogenesis?
What are histogenesis?
What are peritoneum?
Explain coeloms. From which germ layer does it originate?
Are the extra embryonic membranes the same in all vertebrates?
What are pleura, pericardium, and peritoneum?
Explain pleura?