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Anatomie + Physiologie
SNC
Anatomie fonctionnelle
- L’audition : assurée par l’aire 41 et 42 (T1):
• 41 : aire audito sensorielle
• 42 : aire audito psychique et audito gnosique
- partie postérieure du gyrus temporal moyen: localisation spatiale des
sons et leur intégration
L’olfaction : assurée par l’aire 28 (circonvolution limbique).
La gustation : assurée par l’aire 38 (pôle temporal)
Aire 34 + Aire 28= cortex entorhinal
Rôle important dans les processus de la
mémoire.
Aire 22 de Brodmann
traitement auditif et la compréhension du langage.
fonction fortement latéralisée,
Aire 22 gauche: compréhension du langage (sémantique)
Aire 22 droite: traitement de la mélodie, du rythme ou de
l'intensité des sons parlés (prosodie).
L'aire 21: rôle dans le traitement auditif,
notamment des sons de la langue
Chez la plupart des individus, cette fonction est
fortement latéralisée à gauche.
Aire 20 de Brodmann: rôle dans la reconnaissance
visuelle (mémoire) et autres traitements visuels de
haut niveau.
La motricité : motricité extrapyramidale assurée par
l’aires 20 (T3) et 21 (T2) : Ce lobe intervient par le
faisceau temporo-pontin dans les ataxies à
prédominance axiale, et agit indirectement sur les
mouvements cortico-oculo-céphalogyres (aire 22)
Fonctions psychiques et cognitives :
permet à l’individu de prendre conscience de son
existence par rapport à lui-même et au monde
extérieur dans le présent et le passé.

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Snc

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  • 10.
  • 11. Anatomie fonctionnelle - L’audition : assurée par l’aire 41 et 42 (T1): • 41 : aire audito sensorielle • 42 : aire audito psychique et audito gnosique - partie postérieure du gyrus temporal moyen: localisation spatiale des sons et leur intégration
  • 12. L’olfaction : assurée par l’aire 28 (circonvolution limbique). La gustation : assurée par l’aire 38 (pôle temporal)
  • 13. Aire 34 + Aire 28= cortex entorhinal Rôle important dans les processus de la mémoire.
  • 14. Aire 22 de Brodmann traitement auditif et la compréhension du langage. fonction fortement latéralisée, Aire 22 gauche: compréhension du langage (sémantique) Aire 22 droite: traitement de la mélodie, du rythme ou de l'intensité des sons parlés (prosodie).
  • 15. L'aire 21: rôle dans le traitement auditif, notamment des sons de la langue Chez la plupart des individus, cette fonction est fortement latéralisée à gauche.
  • 16. Aire 20 de Brodmann: rôle dans la reconnaissance visuelle (mémoire) et autres traitements visuels de haut niveau.
  • 17. La motricité : motricité extrapyramidale assurée par l’aires 20 (T3) et 21 (T2) : Ce lobe intervient par le faisceau temporo-pontin dans les ataxies à prédominance axiale, et agit indirectement sur les mouvements cortico-oculo-céphalogyres (aire 22) Fonctions psychiques et cognitives : permet à l’individu de prendre conscience de son existence par rapport à lui-même et au monde extérieur dans le présent et le passé.