Reproductive Systems Gametogenesis and Early Development
Which embryonic germ layer ultimately gives rise to the structures of the nervous system?
The ectoderm gives rise to the skin and the nervous system. The endoderm gives rise to the internal mucous membranes and the gut (choice A). The mesoderm gives rise to most major organs (not in the nervous system), muscles, etc. (choice B). There is no such thing as the gastroderm (choice D).