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  1. Prenatal development | Description, Stages, & Timeline | Britannica

    Prenatal development, the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. This process can be divided into three distinct …

  2. Understanding the 3 Prenatal Development Stages - Verywell Mind

    Oct 29, 2025 · The three stages of prenatal development are marked by rapid changes in physical and neurological development. These early stages lay the foundations for the baby's brain …

  3. Prenatal development - Wikipedia

    In human pregnancy, prenatal development is also called antenatal development. The development of the human embryo follows fertilization, and continues as fetal development. By …

  4. Fetal Development: Week-by-Week Stages of Pregnancy

    Fetal development is how a fetus grows during pregnancy. It begins at conception and ends at birth. Many changes occur to the fetus and the pregnant person in this time.

  5. Prenatal Development: Stages and Key Processes - ScienceInsights

    Nov 27, 2025 · Prenatal development transforms a single fertilized cell into a complete organism. This process involves a highly organized sequence of cellular events, tissue formation, and …

  6. What You Should Know About the Stages of Prenatal Development

    Prenatal development is key to a child’s health and wellness after birth. We spoke with Bethany Perry, MD, an obstetrician-gynecologist at Jefferson Health - Abington, about some of the …

  7. Stages of Prenatal Development – Child Psychology

    From beginning as a one-cell structure to your birth, your prenatal development occurred in an orderly and delicate sequence. There are three stages of prenatal development: germinal, …

  8. 5.1 Periods of Prenatal Development - Baylor University

    Let’s take a look at some of the changes that take place during each of the three periods of prenatal development: the germinal period, the embryonic period, and the fetal period.

  9. Fetal development: The first trimester - Mayo Clinic

    Mar 18, 2025 · As your pregnancy goes on, you may wonder how your baby is growing and developing. Use this information to follow along with what's happening week by week during …

  10. Fetal development: MedlinePlus Medical Encyclopedia

    Aug 23, 2023 · Blood cells, kidney cells, and nerve cells all develop. The embryo grows rapidly, and the baby's external features begin to form. Your baby's brain, spinal cord, and heart begin …