Human Fetus at 30 Weeks in the Womb (Brown Skin)

Description

The fetus is shown in the third trimester at approximately 30 weeks of gestation, lying in a flexed attitude within the uterine cavity with the head directed inferiorly and the spine curved convexly along the uterine wall. Surface detail is well advanced for this stage: fine scalp hair covers the calvaria, the auricle of the external ear is fully modelled with a defined helix and lobule, and the eyelids are closed but no longer fused. The limbs are drawn toward the trunk, with the hands near the face and the flexed lower limbs bringing the plantar surfaces and separated toes into view. The umbilical cord leaves the anterior abdominal wall at the umbilicus and coils toward the placenta, its two umbilical arteries and single umbilical vein visible through the translucent Wharton's jelly; the placental disc is sectioned at its margin to show villous tissue against the myometrium. At 30 weeks the fetus has accumulated subcutaneous fat, the skin has lost much of its earlier wrinkling, and lung development has reached the saccular stage with rising surfactant production, so this period is central to counselling on late preterm and moderately preterm outcomes. The relationship shown here between cord insertion, cord coiling and placental site underpins obstetric assessment of cord length, nuchal or body coiling, and placental location, all evaluated on third-trimester ultrasound. The cephalic presentation depicted is the configuration against which breech and transverse lie are compared when planning delivery. The image suits antenatal education leaflets and midwifery teaching on fetal growth week by week, obstetric and neonatology lecture slides on prematurity and fetal viability, and textbook or journal figures illustrating fetoplacental anatomy. As part of a consistent gestational series it also supports app timelines, parent-facing pregnancy content and clinical waiting-room displays. Anatomical accuracy verified by SciePro's Medical Advisory Board.