Anatomie cardiaque: système de conduction Flashcards

1
Q

Rôle système de conduction

A

Déclencher et coordonner les contractions des chambres cardiaques

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2
Q

Origine de l’influx électrique cardiaque

A

Noeud sino-auriculaire ou stimulateur cardiaque

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3
Q

Lieu du noeud sino-auriculaire

A

Sillon terminalis au-dessus du crista terminalis

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4
Q

Voie de propagation de l’influx nerveux jusqu’aux oreillettes

A

Tractus internodaux

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5
Q

Passage de l’influx nerveux des oreillettes aux ventricules

A

Noeud auriculo-ventriculaire

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6
Q

Lieu du noeud auriculo-ventriculaire

A

Oreillette droite

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7
Q

Voie de propagation de l’influx nerveux du septum jusqu’à l’apex

A

Faisceau de His

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8
Q

Voie de propagation dans la paroi ventriculaire

A

Fibres de Purkinje

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9
Q

Ordre des lieux du coeur traversés par l’influx nerveux

A

Oreillettes
Septum
Apex
Paroi ventriculaire

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10
Q

Zone du noeud auriculo-ventriculaire

A

Triangle de Koch

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11
Q

Parois du triangle de Koch (3)

A

(1) SC jusqu’au septum membranaire
(2) Longe valve tricuspide
(3) Anneau valve tricuspide jusqu’à SC

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