PSY 322 Study Guide - Final Guide: Caffeine, Moro Reflex, Malnutrition
Document Summary
Stages of prenatal development: germinal period: first 2 weeks. Germinal period: mass of dividing cells (blastocyst) floats into the uterus and hangs out a couple days, while floating, the cells learn what their jobs will be within the body (cell. Blastocyst begins to form two distinct parts a nucleus that becomes the embryo and the placenta. Blastocyst embeds itself into the uterine lining and begins to multiply marking the end of the germinal period. Blastocyst starts sort of starts to look like a human --embryo. Thin line (primitive streak) starts to develop down the middle of the embryo this will become the neural tube. Head begins to appear with eyes, ears, nose, and mouth starting to form. Fine details of the body (e. g. nails) are starting to form. Building a safe home for the baby: what you should do before getting pregnant:
