trigeminal ganglion,otic vesicle,mouth,vagus nerve,olfactory pit,unicellular gland,auditory apparatus,Jacobson's organ,buccopharyngeal membrane,choana,mouth primordium,cement gland,cement gland primordium,hypophysis,vestibulocochlear ganglion,cranial placode,stomodeal-hypophyseal primordium,olfactory placode,caudal lateral line,lens placode,otic placode,hypobranchial placode,hypophyseal primordium,tooth,olfactory organ,trigeminal placode,olfactory nerve,trunk placode,middle lateral line,dorsal lateral line,epibranchial placode,lens,gasserian ganglion,ventral lateral line,dorsolateral placode region,Rathke's pouch,otic capsule,posterior crista,pars externa of the stapes,lens transitional zone,otic capsule,footplate of the stapes,lateral crista,semicircular canal,oral cavity,saccular macula,neurohypophysis,oval window,melanotrope,middle ear,amphibian papilla,Rathke's pouch,pars distalis,tympanic annulus,endolymphatic duct,stapes,auditory tube,auditory hair cell,pars media of the stapes,prootic bone,roof of mouth,buccopharyngeal membrane,adenohypophysis,lagena,basilar papilla,pars intermedia,lens fiber cell mass,inner ear,osseous labyrinth,pars interna of the stapes,pars nervosa,lens epithelium,vestibule,anterior crista,oral epithelium,tympanic disk,auditory ossicle,vestibular apparatus