Pregnant Woman at 40 Weeks of Gestation, Lateral View (Black Skin)

Description

A lateral cutaway through the trunk of a woman at approximately 40 weeks' gestation reveals the term fetus lying within the greatly distended uterus, which now reaches from the pelvic brim to the level of the lower ribs. The fetus is in cephalic presentation with a flexed spine, limbs drawn against the trunk, and the head engaged in the maternal pelvic inlet just anterior to the sacrum. The umbilical cord loops from the fetal abdomen toward the placental site on the uterine wall, while the maternal small intestine is displaced posteriorly and superiorly and the urinary bladder is compressed anteroinferior to the presenting part. The lumbar vertebrae, sacrum and pelvic bone are shown in profile with the rib cage, abdominal wall and breast providing surface context. At term the relationship between the presenting fetal head and the bony pelvis governs clinical assessment: fundal height measurement, Leopold manoeuvres, determination of station and engagement, and evaluation of the pelvic inlet and outlet before labour. The view also explains the common late-pregnancy complaints seen in obstetric practice, including urinary frequency from bladder compression, lumbar lordosis and low back pain, reduced gastric capacity and dyspnoea from diaphragmatic elevation. It provides the anatomical background for cephalic versus breech presentation, cervical effacement, and the mechanics of descent through the birth canal. The image suits obstetrics and midwifery teaching, antenatal class handouts, patient education on the final weeks of pregnancy and the onset of labour, and figures in textbooks or apps tracking week-by-week fetal development. As part of a matched weekly series it allows educators, publishers and women's health organisations to present growth and positional change in a consistent lateral format. Anatomical accuracy verified by SciePro's Medical Advisory Board.