![](/drem/stage23/labels2/S110L.gif)
![T-3 / T-4 interganglion region, T-3 / T-4 intervertebral disc, aorta, ascending aorta, azygos vein, biceps brachii tendon, iliocostalis muscle, left primary bronchus, left pulmonary artery, longissimus muscle, median nerve, musculi pectinati in right atrial wall, musculi pectinati in wall of left auricle, pulmonary semilunar valve, pulmonary trunk bifurcation, rib 3 (costal cartilage), rib 4, right apical segmental bronchus, right primary bronchus, right pulmonary artery, right upper lobe bronchus, right ventricle, spinalis muscle, superior hemi-azygos vein, ulnar nerve](/drem/stage23/Z0/S110N.jpg)
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Carnegie Embryo #9226 | Location: 110-01-01
Keywords: T-3 / T-4 interganglion region, T-3 / T-4 intervertebral disc, aorta, ascending aorta, azygos vein, biceps brachii tendon, iliocostalis muscle, left primary bronchus, left pulmonary artery, longissimus muscle, median nerve, musculi pectinati in right atrial wall, musculi pectinati in wall of left auricle, pulmonary semilunar valve, pulmonary trunk bifurcation, rib 3 (costal cartilage), rib 4, right apical segmental bronchus, right primary bronchus, right pulmonary artery, right upper lobe bronchus, right ventricle, spinalis muscle, superior hemi-azygos vein, ulnar nerve
Source: The Virtual Human Embryo.