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

Description

A fetus of approximately 22 weeks' gestation lies in a flexed attitude within the intact amniotic sac, surrounded by amniotic fluid and enclosed by the vascularised uterine wall. The head is large relative to the trunk, with a smooth hairless scalp, closed fusing eyelids, formed external ear and distinct lips and nose; the upper limbs are drawn up toward the face with separated fingers, while the lower limbs are folded across the abdomen with fully modelled feet and toes. The umbilicus is visible on the anterior abdominal wall, where the umbilical cord emerges and spirals through the fluid toward the discoid placenta seen in the upper part of the field, its chorionic surface and vessels indicated against the decidua. Skin at this stage still appears thin and translucent over the underlying subcutaneous tissue. Twenty-two weeks sits at the threshold of viability discussed in obstetric and neonatal counselling, making this an anatomically important reference point for gestational age assessment. The view corresponds to the period of the mid-trimester anomaly and growth scans, when biometry of the head, femur and abdomen, placental site, cord insertion and amniotic fluid volume are all documented. Depicted relationships support explanation of fetal presentation and lie, placental localisation, and conditions such as oligohydramnios, polyhydramnios or abnormal cord coiling, as well as the anatomical basis of amniocentesis and Doppler assessment of umbilical flow. The rendering suits obstetrics, midwifery and embryology teaching sequences that track week-by-week development, textbook and atlas figures on second-trimester anatomy, and antenatal class or clinic material prepared for expectant parents. It is equally useful for ultrasound training resources, public health publications and editorial features requiring an accurate, non-clinical depiction of intrauterine life. Anatomical accuracy verified by SciePro's Medical Advisory Board.