Fetus at Week 17

Description

Fetus at 17 weeks’ gestation is shown in a second-trimester posture with the placenta adjacent and the umbilical cord extending from the fetal abdomen to the placental disc. Proportions at this stage favor a relatively large cranium compared with the thorax and abdomen, while the upper and lower limbs appear elongated with defined segments from arm to forearm and thigh to leg. The umbilical cord enters at the umbilicus on the anterior abdominal wall, and its coiled course guides the eye back to the placental surface. Fine anatomic landmarks, including the face, digits, and external ear contours, read clearly against the white background. Week 17 sits in the window when clinicians and educators often emphasize the transition from early organogenesis to growth, skeletal mineralization, and refinement of external form, so the fetus–placenta–cord relationship is more than context. Cord position and placental location are frequent discussion points in obstetric ultrasound, including abnormal placentation (such as low-lying placenta or placenta previa later in pregnancy) and atypical cord insertion patterns (marginal or velamentous), both linked with fetal growth restriction and antepartum bleeding risk. Soft, even lighting and isolation of the concept support teaching of spatial orientation without the distraction of maternal anatomy. Small details matter. Use this illustration for embryology and obstetrics lectures covering second-trimester development, for textbook figures that need placenta and umbilical cord included in the same frame, or for prenatal counseling handouts that explain what a 17-week fetus looks like in relation to the placenta. Anatomical accuracy verified by SciePro's Medical Advisory Board.