Keywords: C-5 / C-6 interganglion region, axial artery, cerebral vesicle (telencephalon), cervical plexus, common cardinal vein, dorsal aorta, dorsal atrioventricular endocardial cushion, fusion point of atrioventricular endocardial cushions, head mesenchyme, interventricular foramen, junction of common cardinal vein and right sinus horn, junction of lateral and medial nasal prominences, junction of postcardinal and precardinal veins, lateral atrioventricular endocardial cushion, lateral ventricle, left atrioventricular canal, neural arch, phrenic nerve, primary interatrial foramen (foramen primum), primary interatrial septum (septum primum), right and left valves of sinus venosus, right atrioventricular canal, secondary interatrial septum (septum secundum), skeletal blastema of humerus, sympathetic trunk, ventral atrioventricular endocardial cushion
Source: The Virtual Human Embryo.