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

Description

A fetus at approximately 22 weeks of gestation lies in a flexed, head-down curled posture inside the transparent amniotic sac, suspended in amniotic fluid within the uterine cavity. The rendering shows the relatively large rounded cranium with fused eyelids, a defined nasal bridge and lips, a hand raised beside the head, and the lower limbs drawn across the abdomen so that the sole and toes of one foot are clearly visible. The umbilical cord emerges from the umbilicus, its spiralled vessels coiling anteriorly before inserting into the discoid placenta seen at upper right against the thickened, vascular uterine wall. Skin is thin and translucent over subcutaneous tissue, with the amnion and chorion drawn as a delicate enveloping membrane. At 22 weeks the fetus sits at the threshold of extrauterine viability, making this stage central to counselling on periviable birth, antenatal corticosteroid timing and neonatal intensive care planning. The view corresponds to what is assessed during the second-trimester anomaly scan and follow-up growth studies: fetal lie and presentation, limb and facial morphology, amniotic fluid volume, cord coiling and insertion, and placental site relative to the internal os. It also provides the anatomical context for procedures such as amniocentesis and for discussion of oligohydramnios, polyhydramnios and placental localisation before delivery planning. This image suits obstetric and midwifery teaching sequences that track week-by-week development, antenatal clinic and ultrasound department displays, and parent-facing booklets explaining what the baby looks like in the middle of the second trimester. Publishers of embryology and obstetrics atlases, prenatal screening providers and health education agencies can use it as a clear reference figure alongside the neighbouring weeks in this series. Anatomical accuracy verified by SciePro's Medical Advisory Board.