Human Fetus at 38 Weeks in the Womb (Brown Skin)

Description

A fetus at 38 weeks of gestation lies in a flexed attitude inside the amniotic sac, suspended in amniotic fluid within the uterine cavity. The head is well developed with visible scalp hair, closed eyelids, formed auricle and a rounded cheek from subcutaneous fat deposition; the hand rests near the mouth and the lower limbs are drawn up with knees and hips flexed, feet crossing near the cord. The umbilical cord loops across the trunk and lower limbs, its vessels distinguishable through the translucent covering, and it runs toward the placenta seen as a thick discoid organ applied to the uterine wall at the upper right. Surrounding the sac, the endometrial lining and richly vascularised myometrium form the outer chamber, with the smooth amnion visible as a distinct membrane enclosing the fluid. At 38 weeks the pregnancy is full term, and this configuration illustrates the anatomy relevant to late third-trimester assessment: fetal lie and presentation, cord position relative to the fetal neck and limbs, placental site, and amniotic fluid volume. It is the reference picture for discussions of cephalic versus breech presentation, biophysical profile and growth scanning, amniotic fluid index estimation, and the placental relationships that matter in previa, abruption and manual delivery of the placenta. The plump subcutaneous tissue, mature skin and abundant scalp hair are the external maturity features scored on neonatal gestational age assessment after birth. Suited to obstetric and midwifery teaching material on term pregnancy and labour preparation, embryology and developmental anatomy atlases, and antenatal class or clinic handouts explaining what the baby looks like in the final weeks. It also serves publishers, sonography trainers and women's health campaigns needing a consistent series depicting fetal growth week by week. Anatomical accuracy verified by SciePro's Medical Advisory Board.