Horizontal oscillation of the trophoblast (pink). The membranous trophoblast has been ommitted to show the embryonic mass (yellow, pt.1) which is composed of the epiblast (green) and hypoblast (yellow, pt. 2).
Source: The Virtual Human Embryo.
Horizontal oscillation of the trophoblast (pink). The membranous trophoblast has been ommitted to show the embryonic mass (yellow, pt.1) which is composed of the epiblast (green) and hypoblast (yellow, pt. 2).
Source: The Virtual Human Embryo.