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Carnegie Embryo #4430 | Location: 16-9
Keywords: C-5 ventral primary ramus, C-6 ventral primary ramus, C-7 dorsal root, C-7 spinal ganglion, ascending aorta, axillary nerve, blastema of deltoid muscle, central canal, descending aorta, edge of infundibulum of right ventricle, edge of left atrium, edge of nose, hand ray condensation, heart prominence, humerus, junction of precardinal and subclavian veins, naris, osteogenic membrane, precardinal vein, radial nerve, right atrium, scapula, subclavian artery
Source: The Virtual Human Embryo.