Fetus at Week 21 - Caucasian Skin

Description

Fetus at gestational week 21 appears in a second-trimester external view with the placenta and umbilical cord kept in the same frame on a white background. The fetal head is proportionally large relative to the trunk, with formed auricles, closed eyelids, and a defined nasal bridge; the neck remains short, and the thorax and abdomen show the typical mid-gestation contour. Upper and lower limbs are flexed in an alternative pose, allowing easy inspection of the hands and feet with separated digits, while the umbilical cord courses from the fetal umbilicus toward the placental disc, where the fetal surface (chorionic plate) transitions to placental tissue. Week 21 sits in the window when obstetric anatomy teaching shifts from organogenesis to growth and surface landmarks, so this illustration supports discussions of biometric expectations and normal morphologic variation in the second trimester. Placental context matters: cord length and direction, as well as the relationship between the fetal abdomen and cord insertion, are the same anatomical reference points used when explaining marginal or velamentous insertion, true knots, and the downstream concern for fetal growth restriction. Lighting and isolation against white keep attention on contours and attachment sites rather than intrauterine surroundings. Good for measurement planning. Use this illustration in embryology and obstetrics curricula when correlating fetal external anatomy with standard prenatal screening at the mid-trimester anatomy scan (around 18 to 22 weeks), and in obstetric counseling materials that explain placenta and umbilical cord anatomy without introducing sonographic artifacts. It also fits medical publishing layouts that need a neutral, distraction-free fetal development plate with Caucasian skin tone for consistent series continuity. Anatomical accuracy verified by SciePro's Medical Advisory Board.