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After the blastula stage what is the following stage of the embryonic development? How is the passage from blastula to the next stage called?
5What is the function of the vitellus in the vertebrate egg? How are these eggs classified according to the amount of vitellus within them?
5What are the main substances transferred from the mother to the fetus through the placenta and from the fetus to the mother?
5What is the cell division during the first stage of the embryonic development called? How is this stage characterized?
5After the morula stage what is the next stage? What is the morphological feature that defines that stage?
5
What is the embryonic origin of the nervous system in vertebrates?
What is placenta?
Explain coeloms. From which germ layer does it originate?
After the neurula stage and from its ventral portion to the dorsal how can the morphology of the embryo be described?
Explain gastrulation?
How is the neural tube formed? What is the embryonic origin of the nervous system in vertebrates?
From which germ layer do blood cells originate?
How yolk sac is formed?
What are the archenteron and the blastopore? What are the destinations of the archenteron and of the blastopore?
Explain pericardium?
What is umbilical cord?
What are pleura?
What is placenta? What are its functions?
Where do liver and pancreas originate from?
Explain organogenesis?
