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Supports de cours Neuro L1 - LAPPS

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Fonctionnement <strong>de</strong>s synapses chimiques<br />

SYNAPSES<br />

• Mécanismes <strong>de</strong> libération <strong>de</strong>s neurotransmetteurs – étape présynaptique<br />

Elément présynatique<br />

(terminaison axonale)<br />

Dépolarisation<br />

Canaux ouverts par<br />

dépolarisation<br />

Ca++<br />

Ca++<br />

Ca++<br />

Ca++<br />

Ca++

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