![](/drem/stage19/labels2/S491L.gif)
![T-4 spinal ganglion, anterior interventricular sulcus, aorta, caudal edge of upper lobe of right lung, edge of frontal prominence, hand ray, horizontal fissure, humerus, left atrioventricular (mitral) valve, left lobe of liver, lower lobe of left lung, lower lobe of right lung, lower secondary bronchus, median nerve, metacarpal cartilage, middle lobe of right lung, notochord, oblique fissure, pulmonary vein(s), right atrium, right ventricle, ulnar nerve, upper lobe of left lung, upper secondary bronchus, valve of inferior vena cava](/drem/stage19/Z0/S491N.jpg)
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Carnegie Embryo #9325 | Location: 17-4-2
Keywords: T-4 spinal ganglion, anterior interventricular sulcus, aorta, caudal edge of upper lobe of right lung, edge of frontal prominence, hand ray, horizontal fissure, humerus, left atrioventricular (mitral) valve, left lobe of liver, lower lobe of left lung, lower lobe of right lung, lower secondary bronchus, median nerve, metacarpal cartilage, middle lobe of right lung, notochord, oblique fissure, pulmonary vein(s), right atrium, right ventricle, ulnar nerve, upper lobe of left lung, upper secondary bronchus, valve of inferior vena cava
Source: The Virtual Human Embryo.