A Clear Visualization of the Fetal Body at Gestational Week Twenty-Three

Description

Presented in a curled fetal position at approximately gestational week 23, the conceptus is shown with the head flexed inferiorly toward the thorax, the hips and knees flexed, and the upper limbs drawn across the anterior trunk. The craniofacial contour, external ear region, and developing neck are apparent, with the shoulders positioned superior to the folded forearms and hands. Distally, slender digits of both hands and feet are defined, and the umbilical cord courses from the anterior abdominal wall to the placenta off-frame, providing a clear landmark for fetal orientation. At 23 weeks’ gestation, surface anatomy begins to correlate more reliably with obstetric ultrasound and fetal MRI expectations, so this stage is often used to teach normal growth patterns and viability-era counseling. Limb posture and digit separation matter when screening for structural anomalies such as arthrogryposis (reduced fetal movement with fixed joint contractures) or terminal transverse limb defects, where distal anatomy and joint positioning guide differential diagnosis. The visible umbilical cord insertion also supports discussions of ventral wall defects and cord abnormalities, including omphalocele and single umbilical artery, which are commonly evaluated in the mid-trimester anatomic survey. Use this artwork in embryology and human development curricula, perinatology lectures focused on the late second trimester, or as a figure in obstetric imaging texts that correlate gestational age with external morphology. It also suits patient-facing materials where accurate depiction of fetal size, posture, and cord connection is needed without distracting background elements. Anatomical accuracy verified by SciePro's Medical Advisory Board.