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Olfaction : annale 2024-2025 session 2


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Posted

Salut, je ne comprends pas l'item E qcm 7 : "Le protoneurone de la voie olfactive a un prolongement externe dans les fosses nasales."

Comtpé vrai mais pour c'est un plutôt un prolongement à travers la lame criblée pour atteindre le bulbe olfactif en endocrânien.

Merci d'avance !

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Posted

Coucou, le protoneurone de la voie olfactive est un neurone bipolaire, il comporte deux prolongements : 

-  un prolongement interne qui traverse la lame criblée et rejoint le bulbe olfactif

 - un prolongement périphérique (externe) qui se termine dans les fosses nasales

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