Pregnant Woman at 29 Weeks of Gestation, Lateral View (Asian Skin)

Description

Seen from the left side, the maternal torso is rendered semi-transparently so that the gravid uterus dominates the lower abdomen and pelvis. Within the amniotic sac the third-trimester fetus lies in cephalic presentation, head directed toward the pelvic inlet, spine curved anteriorly and limbs flexed against the trunk in the characteristic fetal attitude. The umbilical cord loops from the fetal abdomen toward the placenta implanted on the uterine wall, while the cervix, vaginal canal and urinary bladder are visible inferiorly. Bony landmarks including the lumbar vertebrae and sacrum indicate how the uterine fundus has risen well above the umbilicus and displaced the abdominal viscera superiorly by week 29. At 29 weeks the fetus has usually adopted, or is close to adopting, a longitudinal cephalic lie, and this projection makes clear why presentation, fundal height and engagement are assessed clinically in the third trimester. The view illustrates the mechanical basis of common late-pregnancy complaints: bladder compression and urinary frequency, lumbar lordosis with low back pain, and diaphragmatic elevation with breathlessness. It also provides orientation for obstetric ultrasound, Leopold manoeuvres, fetal heart auscultation and discussion of placental position relative to the cervical os. The image supports obstetric and midwifery teaching, antenatal classes and patient-facing material explaining fetal position and growth during the third trimester. It serves textbooks, atlases of prenatal development and journal figures, and as one member of a week-by-week gestation series it allows direct visual comparison of uterine size and fetal maturity across pregnancy for clinicians, educators and publishers. Anatomical accuracy verified by SciePro's Medical Advisory Board.