develops_from develops from extends_fibers_into facial nerve geniculate ganglion BAMS:GgVII EFO:0003669 EHDAA2:0000491 EHDAA2:0004623 EHDAA:5567 EHDAA:6644 EMAPA:17569 FMA:53414 GAID:718 MA:0001076 MESH:D005830 NCIT:C12721 TAO:0001291 These (the epibranchial placodes) are focal thickenings of the embryonic ectoderm that form immediately dorsal and caudal of the clefts between the pharyngeal arches in all vertebrates, and they produce the neuroblasts which migrate and condense to form the distal cranial ganglia: the geniculate, petrosal and nodose ganglia. (...) The one substantial difference between the vertebrate pharyngeal arches and those of the protochordates is the presence of the epibranchial placodes but the evolution of these structures was undoubtedly driven by the endoderm.[well established][VHOG] UBERON:0001700 UMLS:C0017406 VHOG:0000707 ZFA:0001291 facial VII ganglion facial ganglion gVII ganglion genicularum ganglion geniculi ganglion geniculi nervi facialis genicular ganglion geniculate geniculate ganglion internal genu resolve facial VII vs geniculate (see EHDAA2) the group of sensory neuron cell bodies associated with the facial nerve (seventh cranial nerve) uberon cranial ganglion sensory ganglion geniculate placode epibranchial ganglion mesenchyme from rhombencephalic neural crest neural crest-derived structure acoustico-facial VII-VIII ganglion complex