Human Fetus at 29 Weeks in the Womb (Brown Skin)

Description

The rendering shows a third-trimester fetus of approximately 29 weeks lying in a flexed attitude within the amniotic cavity, head inferior and to the right, limbs drawn toward the trunk. The umbilical cord spirals from the anterior abdominal wall at the umbilicus toward the placenta, its two umbilical arteries and single umbilical vein visible as intertwined vessels beneath the amniotic sheath. The placenta occupies the upper left of the field, its fetal surface smooth with radiating chorionic vessels and its maternal aspect showing the villous, lobulated texture that interfaces with the decidua. Fetal detail typical of this stage is depicted: scalp hair, formed external ear, defined eyelids and eyebrows, fingers and toes with nail beds, and subcutaneous fat that has begun to smooth the contours of the limbs and face. Twenty-nine weeks marks a period of rapid brain growth, accelerating weight gain and continuing surfactant production in the fetal lungs, which underpins the improving survival seen with late preterm compared with earlier deliveries. The view illustrates the anatomy relevant to third-trimester obstetric assessment, including fetal lie and presentation, placental position and cord insertion, all of which are routinely evaluated on ultrasound. Cord coiling, amniotic fluid volume and placental appearance are the same features clinicians examine when investigating growth restriction, reduced fetal movements or suspected cord accidents. The image suits antenatal education materials, midwifery and obstetric teaching on trimester-by-trimester development, textbook and atlas figures on fetal growth, and patient-facing leaflets explaining what a baby looks like near the start of the third trimester. It also serves neonatology and prenatal counselling resources addressing preterm birth, and forms part of a gestational series allowing week-to-week comparison. Anatomical accuracy verified by SciePro's Medical Advisory Board.