Human Fetus at 29 Weeks in the Uterus, Lateral View (Brown Skin)

Description

Seen from the side, the maternal torso is rendered semi-transparent so the gravid uterus fills the abdomen and lower pelvis at about 29 weeks of gestation. The fetus lies in cephalic presentation, the head low and directed toward the pelvic inlet, the spine curved along the anterior uterine wall and the limbs flexed against the trunk. The coiled umbilical cord runs from the fetal abdomen to the placenta implanted on the posterior uterine wall, and the fetus is enclosed by the amniotic sac and its fluid. The cervix, vagina and urinary bladder are visible inferiorly, with the sacrum, lumbar vertebrae and pelvic bone framing the posterior and caudal boundaries of the uterine cavity. By the third trimester this lateral projection makes several clinically important relationships explicit: the height of the uterine fundus used for symphysis-fundal height measurement, the compression of the bladder that produces urinary frequency, and the lumbar lordosis and sacroiliac loading that underlie late-pregnancy back pain. The longitudinal lie with a cephalic presenting part is the configuration assessed on Leopold manoeuvres and confirmed sonographically, and the depicted placental site and cord course are the anatomy referenced when discussing placental localisation, cord position and fetal growth surveillance. The view also supports explanation of engagement, station and the mechanics of the birth canal. The illustration suits obstetric and midwifery teaching sequences on trimester-by-trimester development, antenatal class handouts and patient education material explaining fetal position and common third-trimester symptoms. It works equally as a figure in textbooks, apps and journal articles on prenatal care, and as part of a matched series of gestational stages for publishers and healthcare communication agencies. Anatomical accuracy verified by SciePro's Medical Advisory Board.