The sensory nerve that transmits the sense of smell. It is the first cranial nerve. It is a nerve process that runs from the base of the olfactory cells distributed in the olfactory epithelium of the nasal cavity to the olfactory bulb in the cranial cavity, and is noted as a primitive type of sensory nerve in that it sends nerve processes directly to the brain. The olfactory nerve is easily damaged by head trauma. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
嗅覚を伝える感覚神経。第1番目の脳神経。鼻腔の嗅上皮に分布する嗅細胞の基部から頭蓋腔内の嗅球に向う神経突起であり,直接脳に神経突起を送る点で,感覚神経の原始型として注目される。嗅神経は頭部外傷で損傷を受けやすい。
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