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Carnegie Stage Section
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T-4 spinal ganglion, anterior atrioventricular sulcus, aorta, aortic semilunar valve, ascending aorta, azygos vein, central canal, cephalic edge of right ventricle, esophagus, humero-ulnar joint, humerus, left atrium, left primary bronchus, neural arch, pectoralis major muscle, pericardial sac, rib 4, rib 5, right atrium, right primary bronchus, right ventricle, scapula, spinal cord, superior hemi-azygos vein, superior vena cava, sympathetic trunk, transverse pericardial sinus, triceps brachii muscle, upper lobe of left lung, upper lobe of right lung
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Carnegie Embryo #9226   |   Location: 113-01-01

Keywords: T-4 spinal ganglion, anterior atrioventricular sulcus, aorta, aortic semilunar valve, ascending aorta, azygos vein, central canal, cephalic edge of right ventricle, esophagus, humero-ulnar joint, humerus, left atrium, left primary bronchus, neural arch, pectoralis major muscle, pericardial sac, rib 4, rib 5, right atrium, right primary bronchus, right ventricle, scapula, spinal cord, superior hemi-azygos vein, superior vena cava, sympathetic trunk, transverse pericardial sinus, triceps brachii muscle, upper lobe of left lung, upper lobe of right lung

Source: The Virtual Human Embryo.