• 5th week of pregnancy
    Pregnancy

    Pregnancy week after week: 5th week of pregnancy

    Pregnancy week after week: 5th week of pregnancy During the 5th week of pregnancy, the nerve and vascular system are formed, and the placental circulation nourishes the embryo. At the same time, the expectant mother begins to find she is pregnant. 5th week of pregnancy = Start of organ development During the 5th week of pregnancy, the last germline, the mesoderm, which is between the entoderm and the ectoderm, arises. From the mesoderm, the entire musculoskeletal system - the skeleton, the muscles and also the kidneys, the heart, and the vascular system - develop over time. Thus the development of three-layer embryo ends and the period of organogenesis, i.e. organ…