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Carnegie Stage Section
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L-5 ventral primary ramus, T-5 / T-6 interganglion region, T-6 intercostal nerve, allantois, caudal edge of lingula of upper lobe of left lung, external abdominal oblique muscle, inferior vena cava, left umbilical artery, left ventricle, liver prominence, lower lobe of right lung, middle lobe of right lung, oblique fissure, peritoneal cavity, rib 7, rib 8, rib 9, right atrium, right lower pulmonary vein, right umbilical artery, sympathetic trunk, umbilical coelom, umbilical vein
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Carnegie Embryo #4090   |   Location: 18-1

Keywords: L-5 ventral primary ramus, T-5 / T-6 interganglion region, T-6 intercostal nerve, allantois, caudal edge of lingula of upper lobe of left lung, external abdominal oblique muscle, inferior vena cava, left umbilical artery, left ventricle, liver prominence, lower lobe of right lung, middle lobe of right lung, oblique fissure, peritoneal cavity, rib 7, rib 8, rib 9, right atrium, right lower pulmonary vein, right umbilical artery, sympathetic trunk, umbilical coelom, umbilical vein

Source: The Virtual Human Embryo.