Norman and Shaun are joined by embryology wizard Terence as they try to make sense of the first few weeks of human development. Topics covered in this episode include: zygote formation, cleavage, implantation, formation of a bilaminar disk, gastrulation, neurulation, lateral folding, head-tail folding and the development of the diaphragm and body cavities.  --- Send in a voice message: https://anchor.fm/shaun--norm-and-terence/message