From day 36th, small bumps appear in the embryo that will transform into arms and legs. It only remains to complete the development of his hands and fingers. The umbilical cord also begins to develop. The face and the systems present in it, also begin to be constituted. The placenta, the organ that supplies the fetus with food and oxygen, also collects its waste and acts as a protective barrier against any harmful substance. By the 60th day of gestation, the essential internal organs have been already formed. The heart beats strongly and the respiratory and digestive systems begin to shape. This infographic from the Ábaco collection is included in the First Human Forms series, which also include From Zygote to Embryo II.