Primary Organ Rudiments in Amphioxus & Amphibians | Embryology

In this article we will discuss about the formation of primary organ rudiments in amphioxus and amphibians. Primary Organ Rudiments in Amphioxus: Immediately after the germinal layers have taken up their positions in the inside and on the surface of the gastrula, the next phase of development sets in. The sheets of epithelium which were representative of the various parts [...]