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
Explain the embryonic development stages after formation of blastula?
What are the blastopore?
What is notochord?
What is the function of the vitellus in the vertebrate egg? How are these eggs classified according to the amount of vitellus within them?
In which type of animals does the placenta exist?
From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer?
How is the neural tube formed?
What is gastrulation? How during gastrulation are the first two germ layers formed? Which are these germ layers?
Explain the morphology of an embryo from ventral to dorsal portion after neural stage?
Which hormones are produced by placenta?
To which structures do coeloms give birth?
What stage follows gastrulation?
After the morula stage what is the next stage? What is the morphological feature that defines that stage?
What is umbilical cord?
What are the four initial stages of the embryonic development?
