Intestines Begin to Recede Into Body Cavity Head and Neck Eyes are well-developed, but are still located on the side of the embryonic head. As head development continues, they will migrate forward. External ears are set low on the embryo's head, but will move up as the head enlarges. Over the next few days, tongue development finishes. Abdomen Intestines begin migration within the umbilical cord towards the embryo.
Liver causes a ventral prominence of the abdomen.
Feet approach each other, but are still fan-shaped and the toe digits are still webbed.