|  | tongue muscle | 
|  | pharyngo-tympanic tube | 
|  | thymus primordium | 
|  | pons ventricular layer | 
|  | medulla oblongata alar plate ventricular layer | 
|  | telencephalon ventricular layer | 
|  | submandibular gland primordium | 
|  | nasal cavity respiratory epithelium | 
|  | midbrain ventricular layer | 
|  | diencephalon lateral wall ventricular layer | 
|  | rest of cerebellum ventricular layer | 
|  | heart ventricle | 
|  | heart atrium | 
|  | lower jaw molar | 
|  | vertebral axis musculature | 
|  | upper jaw molar | 
|  | lower jaw incisor | 
|  | upper jaw incisor |