Human Fetus at 26 Weeks in the Uterus, Lateral View (Brown Skin)

Description

Seen from the side, the maternal torso is rendered translucent so that the gravid uterus, amniotic sac and fetus at approximately 26 weeks of gestation stand out within the abdomen and pelvis. The fetus lies in a cephalic presentation with the head resting low toward the pelvic inlet, the spine curved along the maternal anterior abdominal wall and the limbs flexed against the trunk. The umbilical cord loops anteriorly from the abdomen of the fetus toward the placental region on the uterine wall, while the maternal urinary bladder is visible anteroinferior to the lower uterine segment and cervix. The bony pelvis, sacrum and abdominal wall provide the surrounding frame, and one maternal hand rests on the flank in a typical late second-trimester posture. At week 26 the fetus has entered the period of rapid lung maturation, with terminal sac formation and early surfactant production, making this the anatomy behind discussions of periviability and neonatal intensive care planning. The illustration shows why fundal height at this stage displaces the stomach and diaphragm upward and compresses the urinary bladder, accounting for reflux symptoms and urinary frequency. It also supports teaching on Leopold manoeuvres, fetal lie and presentation, cord position and the growth surveillance performed by ultrasound biometry during the late second trimester. The image suits obstetric and midwifery teaching sequences that track a single pregnancy week by week, antenatal class handouts, and patient education material explaining fetal position and maternal body changes. Publishers, hospital communications teams and prenatal app developers can use it alongside the other gestational weeks in this series for a consistent visual timeline. Anatomical accuracy verified by SciePro's Medical Advisory Board.