The document provides information about pregnancy and fetal development from fertilization through the first, second, and third trimesters. It describes how the embryo implants in the uterus and develops organs and limbs over the course of weeks. The placenta and umbilical cord form to support the growth of the fetus and allow nutrient exchange with the mother. The fetus' movements begin at 9 weeks and its sex may be apparent at 11 weeks.
7. Amnion Membranous sac which surrounds & protects the embryo . umbilical cord Lifeline between the fetus and the placenta in the uterus Later stage in the development of the umbilical cord Fetus of about eight weeks, enclosed in the amnion.
8. Formation and structure of the umbilical cord – By the end of the third week of development the embryo is attached to placenta via a connecting stalk Beginning of the umbilical cord Development of the umbilical cord Development of the yolk sac & the duct
9. Cross section of normal umbilical cord Fetus at ~53 days Umbilical cord protects the fetal vessels that connect the placenta & fetus Fetus and placenta from a 17 week gestation
115. New Born A healthy new born cries vigorously as soon as he is born, kicking his limbs actively, giving the greatest joy to the tired mother. Thank You