part of part of in taxon results in formation of anatomical entity cranial nerve formation olfactory nerve morphogenesis olfactory nerve formation GO:0021628 The process that gives rise to the olfactory nerve. This process pertains to the initial formation of a structure from unspecified parts. The olfactory nerve is a collection of sensory nerve rootlets that extend down from the olfactory bulb to the olfactory mucosa of the upper parts of the nasal cavity. This nerve conducts odor information to the brainstem. CN I biosynthesis CN I formation anatomical structure formation involved in morphogenesis Craniata <chordates> olfactory nerve