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嗅覺神經

 
,醫學編輯
最近審查:23.04.2024
 
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嗅覺神經n。Olfactorii)由位於鼻腔嗅覺區域的粘膜中的嗅覺(受體)細胞的軸突形成。該區域對應於上部和部分中間的鼻殼以及鼻中隔的上部。人類嗅覺細胞的數量達到600萬(每1mm 2粘膜表面有30,000個受體)。嗅覺細胞的軸突通過嗅覺區域的粘膜的支持細胞之間。嗅神經纖維不形成單一的神經乾,它們聚集在15-20根細莖中。嗅覺神經穿過網格板的孔並被送到大腦嗅覺嗅球。在此,進行軸突末端與嗅球的二尖瓣神經元的樹突的突觸接觸(參見“感官器官”)。

trusted-source[1], [2], [3], [4], [5]

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