Pregnant Woman at 39 Weeks, Lateral View (Black Skin)

Description

A lateral cutaway through the trunk of a pregnant woman at 39 weeks of gestation reveals the greatly enlarged uterus filling the abdominal cavity from the pelvic brim to the epigastrium. The fetus lies in cephalic presentation with a flexed vertex, the head descended into the pelvic inlet and the occiput directed anteriorly, while the spine curves along the maternal anterior abdominal wall and the limbs are folded against the trunk. The umbilical cord loops between the fetal abdomen and the placental surface within the amniotic cavity. Maternal viscera are displaced by the term uterus: coils of small intestine and the large intestine are pushed superiorly and posteriorly, the urinary bladder is compressed anteroinferiorly behind the pubis, and the rectum and sacrum frame the posterior pelvis. The vertebral column shows the accentuated lumbar lordosis typical of late pregnancy. This depiction illustrates the anatomy central to late third-trimester assessment and delivery planning. Engagement of the fetal head, measured in fifths palpable above the pelvic brim, is a standard component of abdominal examination at term, and the relationship between the presenting part, the ischial spines and the sacral hollow underlies station assessment on vaginal examination. The compressed bladder explains urinary frequency, the displaced bowel explains constipation and reflux, and the shifted centre of gravity with lumbar lordosis accounts for the low back and pelvic girdle pain the figure's posture conveys. The view also clarifies why fetal lie, presentation and position are documented before labour. The image suits obstetric and midwifery teaching on term pregnancy, fetal lie and presentation, antenatal atlases and textbook chapters on maternal physiological adaptation, and childbirth education or patient-facing material preparing families for labour. It is equally useful for clinical skills modules on abdominal palpation and for publication figures requiring a clear sagittal-style overview of the term uterus among maternal pelvic organs. Anatomical accuracy verified by SciePro's Medical Advisory Board.