![](/drem/stage23/labels2/S117L.gif)
![T-4 / T-5 interganglion region, anterior interventricular sulcus, aortic vestibule, azygos vein, central canal of spinal cord, humerus, iliocostalis muscle, inferior lingular segmental bronchus of left lung, left atrium, left ventricle, longissimus muscle, lower lobe of left lung, middle lobe of right lung, neural arch, pericardial cavity, pleural cavity, radius, rib 4, rib 5, right atrium, sinus venarum, spinalis muscle, subcostal muscle, sympathetic trunk, trabecular part of right ventricle, triceps brachii muscle, ulnar nerve](/drem/stage23/Z0/S117N.jpg)
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Carnegie Embryo #9226 | Location: 117-01-01
Keywords: T-4 / T-5 interganglion region, anterior interventricular sulcus, aortic vestibule, azygos vein, central canal of spinal cord, humerus, iliocostalis muscle, inferior lingular segmental bronchus of left lung, left atrium, left ventricle, longissimus muscle, lower lobe of left lung, middle lobe of right lung, neural arch, pericardial cavity, pleural cavity, radius, rib 4, rib 5, right atrium, sinus venarum, spinalis muscle, subcostal muscle, sympathetic trunk, trabecular part of right ventricle, triceps brachii muscle, ulnar nerve
Source: The Virtual Human Embryo.