Third Week of Development - An Overview

This video provides an overview of the events occuring in a three-week old embryo. It briefly touches upon the topic of gastrulation, notochord and somite formation along with the development of the circulatory system. 0:00 Gastrulation 0:21 Primitive Streak 0:40 Three Germ Layers & Trilaminar Disc 1:17 Fates of Germ Layers 1:42 Neural Tube and Somite Formation 2:52 Heart & Vessel Formation