Human Fetus at 22 Weeks in the Womb (Asian Skin)

Description

This realistic rendering shows a fetus at approximately 22 weeks of gestation lying curled inside the uterine cavity, viewed close in from the side. The large, still disproportionate cranium dominates the frame, with the forehead rounded, the eyelids fused and the nose, lips and chin modelled in soft profile; the auricle of the external ear is fully formed and set low against the head. One upper limb is flexed so that the hand, with separated fingers and visible nail beds, rests near the mouth, while the opposite knee and a foot with distinct toes are drawn up toward the trunk in the characteristic flexed fetal posture. Behind the shoulder the umbilical cord coils through the amniotic space, its paired arteries and single vein indicated by the twisted red and violet vessels against the warm translucency of the surrounding uterine wall. At 22 weeks the fetus sits at the threshold of viability, which makes this stage central to counselling on extreme preterm birth, surfactant immaturity and neonatal intensive care planning. The features shown correspond to landmarks assessed during the second-trimester anomaly scan and later growth ultrasound: biparietal diameter and head contour, facial profile and nasal bone, ear position, and the number of digits on hand and foot. Hand-to-mouth contact of this kind reflects developing neuromuscular coordination and the emerging suck reflex, while cord appearance and vessel count are routinely documented because a single umbilical artery may prompt further evaluation. The image suits obstetric and midwifery teaching on second-trimester development, antenatal clinic and patient education material explaining what an ultrasound at this stage represents, and embryology or human development chapters in textbooks and atlases. It also serves editorial and public-health publishing on preterm birth and prenatal care, and forms part of a week-by-week series that allows growth and posture to be compared across gestation. Anatomical accuracy verified by SciePro's Medical Advisory Board.