Fetal Growth at Gestational Week 38

Description

Late-term fetal anatomy at gestational week 38 is rendered in a flexed, curled posture with the head tucked inferiorly and the spine forming a smooth posterior convexity. The auricle (pinna) is well formed on the lateral aspect of the head, with recognizable helix, antihelix, concha, tragus, and lobule against a realistic skin surface. Superior to the fetus, the placenta occupies the uterine roof region and connects to the fetal abdomen by a spiraled umbilical cord, its paired umbilical arteries coursing alongside a single umbilical vein within Wharton’s jelly. Near-term proportion and surface anatomy matter because week 38 sits at the threshold between late preterm and term physiology, when clinicians correlate external maturation with gestational dating and expected neonatal readiness. Ear morphology is not cosmetic trivia; low-set or posteriorly rotated auricles are classic dysmorphic clues in aneuploidy screening and in syndromic assessments, while the cord’s coiling pattern and placental attachment invite discussion of fetoplacental circulation and risks such as velamentous insertion, vasa previa, or cord entanglement. Short statement. The curled fetal position also mirrors what you see on obstetric ultrasound when assessing presentation and overall biometry late in pregnancy. Obstetrics and embryology instructors can drop this into lectures on third-trimester development, fetal presentation, and placental anatomy, and it also fits cleanly into patient-facing education on term pregnancy anatomy without sacrificing Terminologia Anatomica rigor. Publishers will find it well suited for atlas plates or review chapters on fetoplacental unit structure, umbilical cord coiling, and external dysmorphology screening at term. Anatomical accuracy verified by SciePro's Medical Advisory Board.