Fetal Development at Gestational Week 29

Description

Curled in flexion within the uterine cavity, a 29-week human fetus is shown with the head tucked toward the thorax, the upper limbs adducted across the chest, and the hips and knees flexed so the feet lie near the pelvis. The umbilical cord arises from the fetal umbilicus, courses in a gentle coil, and inserts into the fetal surface of the placenta, which sits superior to the fetus along the uterine wall. External landmarks are clear, including the cranial vault, auricles, eyelids, digits, and the contour of the trunk, with skin texture rendered to reflect late second to early third trimester maturation. Week 29 falls within a clinically meaningful window: survival after preterm delivery becomes more likely, but the fetus remains vulnerable to respiratory distress syndrome and intraventricular hemorrhage. Cord and placental relationships matter here because placental insufficiency and abnormal cord insertion can drive fetal growth restriction, and cord presentation or cord prolapse are obstetric emergencies tied directly to how the cord lies relative to the fetus and membranes. Scale and proportion at this stage also support teaching around fundal height correlation and the expected transition toward cephalic presentation as gestation advances. A late-preterm body plan. Use this asset in embryology and obstetrics teaching decks to anchor third-trimester developmental milestones, in patient education materials explaining the placenta and umbilical cord, or in perinatal medicine publications discussing late-preterm outcomes and placental pathology. Anatomical accuracy verified by SciePro's Medical Advisory Board.