By the last stage of embryonic development, all essential external and internal structures are present. Head Head is erect and rounded. External ear is completely developed. The eyes are closed, but the retina of the eye is fully pigmented. The eyelids begin to unite and are only half closed.
Taste buds begin to form on the surface of the tongue.
The primary teeth are at cap stage. Bones of the palate begin to fuse. Scalp plexus reaches head vertex. Abdomen Intestines begin to migrate from the umbilical cord into the body cavity. Pelvis External genitals still difficult to recognize.