Pregnant Woman at Week 20 of Gestation, Lateral View (Brown Skin)

Description

A pregnant woman's torso is shown in left lateral profile, one hand resting on the upper abdomen and the other on the lower back, while a transparent overlay of the abdominal wall and pelvis exposes the gravid uterus. The fetus at approximately 20 weeks lies in a curved, flexed posture with the head directed inferiorly toward the pelvic inlet, limbs drawn toward the trunk, and the umbilical cord looping from the anterior abdominal insertion to the placenta on the uterine wall. The amniotic sac outlines the fetal space, and the uterine fundus reaches to about the level of the maternal umbilicus, displacing intra-abdominal contents superiorly. Pelvic landmarks visible in the same cut include the sacrum and pelvic bone, the urinary bladder anteriorly, the rectum posteriorly, the cervix and vaginal canal inferiorly, and the maternal thigh framing the lower border. Week 20 marks the midpoint of gestation, when fundal height in centimetres approximates gestational age in weeks and the mid-trimester anatomy scan is routinely performed. The lateral perspective makes clear why growing uterine volume shifts the maternal centre of gravity, increases lumbar lordosis, and contributes to low back and pelvic girdle pain, as suggested by the hand placement. It also shows the anatomical basis for bladder compression and urinary frequency, and the relationship of the presenting fetal part to the cervix that underlies assessment of presentation, placental site and cervical length. Suited to obstetric and midwifery teaching sequences that track pregnancy week by week, antenatal class handouts, patient information leaflets on fetal growth and maternal posture, and publication or app figures for obstetrics, ultrasound training and women's health resources. As part of a matched series of gestational stages, it supports side-by-side comparison of uterine size and fetal development across pregnancy. Anatomical accuracy verified by SciePro's Medical Advisory Board.