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Carnegie Stage Section
C-4 spinal ganglion, anterior scalene muscle, artifact fracture(s), cephalic edge of lateral ventricle, choana, cornea, head mesenchyme, hyaloid vessel(s), hypoglossal nerve (CN XII), intraretinal space (optic vesicle cavity), laryngeal pharynx, larynx, lens, masseter muscle, middle scalene muscle, nasal cavity (nasal sac), nasal septal cartilage, olfactory bulb, olfactory epithelium (placode), optic cup cavity, orbicularis oculi muscle, palatine shelf, platysma muscle, submandibular ganglion, surface ectoderm
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Carnegie Embryo #4090   |   Location: 11-9

Keywords: C-4 spinal ganglion, anterior scalene muscle, artifact fracture(s), cephalic edge of lateral ventricle, choana, cornea, head mesenchyme, hyaloid vessel(s), hypoglossal nerve (CN XII), intraretinal space (optic vesicle cavity), laryngeal pharynx, larynx, lens, masseter muscle, middle scalene muscle, nasal cavity (nasal sac), nasal septal cartilage, olfactory bulb, olfactory epithelium (placode), optic cup cavity, orbicularis oculi muscle, palatine shelf, platysma muscle, submandibular ganglion, surface ectoderm

Source: The Virtual Human Embryo.