【その他の特徴】 参考:「Rauber-Kopsch 解剖学」
・知覚性の線維を鼻中隔の下部の粘膜に送っている。
・切歯管に入る前に前上歯槽枝(眼窩下神経の枝)の鼻枝と結合する。
・口蓋に分布する神経線維は大口蓋神経と結合している。
【翼口蓋神経節を出て蝶口蓋孔を通る神経全体図】
【内側上行鼻枝/鼻口蓋神経の経過】
【翼口蓋神経節に出入りする神経全体図】
【翼口蓋窩に出入りする神経全体図】
【Wikipedia】
The nasopalatine nerve (also long sphenopalatine nerve ) is a nerve of the head. It is a sensory branch of the maxillary nerve (CN V2) that passes through the pterygopalatine ganglion (without synapsing) and then through the sphenopalatine foramen to enter the nasal cavity, and finally out of the nasal cavity through the incisive canal and then the incisive fossa to enter the hard palate. It provides sensory innervation to the posteroinferior part of the nasal septum, and gingiva just posterior to the upper incisor teeth.[1]: 496
The nasopalatine nerve is the largest of the medial posterior superior nasal nerves.[1]: 370
Structure
Course
It exits the pterygopalatine fossa through the sphenopalatine foramen to enter the nasal cavity.[2] It passes across the roof of the nasal cavity[3] below the orifice of the sphenoidal sinus to reach the[4][better source needed] posterior part of[2] the nasal septum.[4][better source needed] It passes anteroinferiorly upon the nasal septum along a groove upon the vomer,[2] running between the periosteum and mucous membrane of the lower part of the nasal septum.[4][better source needed] It then passes through the hard palate by descending through the incisive canal to reach the roof of the mouth.[2]
Distribution
The nasopalatine nerve provides sensory innervation to the posteroinferior portion of the nasal septum,[1]: 496 and the anterior-most portion of the hard palate[1]: 370 (i.e. the gingiva[1]: 496 /mucous membrane of the palate[citation needed] just posterior to the upper incisors[1]: 496 ).
Communications
The nasopalatine nerve communicates with the corresponding nerve of the opposite side and with the greater palatine nerve.
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