Pregnant Woman at Week 21 of Gestation, Lateral View (Caucasian Skin)

Description

A side view of the maternal torso is rendered semi-transparent so the gravid uterus can be read in place within the lower abdomen and true pelvis. The fetus at approximately 21 weeks lies curled in the amniotic cavity with the head directed inferiorly and to the front, limbs flexed against the trunk, and the umbilical cord looping from the anterior abdominal insertion toward the placental wall lining the uterine cavity. The thickened myometrium is shown as a continuous shell tapering to the cervix, with the vagina below and the urinary bladder anterior, the rectum posterior, and the pelvic bone and sacrum ghosted behind the uterine outline. The fundus is seen rising toward the level of the umbilicus, matching the abdominal contour of the mid second trimester. This projection is the standard reference for teaching fundal height and uterine growth across gestation, since the sagittal relationship between fundus, umbilicus and symphysis underpins routine antenatal measurement. It also illustrates why bladder compression and urinary frequency, altered lumbar lordosis and lower back strain accompany the second trimester as the uterus displaces pelvic and abdominal contents. Fetal position, cord course and placental site are the same landmarks assessed at the mid-trimester anomaly scan performed around 20 to 22 weeks, making the image a useful anatomical companion to obstetric ultrasound reporting. The rendering suits antenatal education leaflets, midwifery and obstetric nursing curricula, and week-by-week pregnancy resources for expectant parents, where a recognisable external body silhouette helps orient a lay audience. It also serves textbook and journal figures on uterine anatomy, fetal presentation and second-trimester development, and supports app or website content produced by clinics, publishers and women's health companies. As part of a matched weekly series it allows direct visual comparison of fetal size and uterine expansion between stages. Anatomical accuracy verified by SciePro's Medical Advisory Board.