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La valvola tricuspide

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La valvola atrio-ventricolare destra presenta tre lembi o cuspidi (tricuspide): settale, inferiore ed antero-superiore, che sono rispettivamente separate fra loro dalle commissure antero-settale, supero-inferiore ed infero-settale. La cuspide inferiore prende origine esclusivamente dalla parete diaframmatica del ventricolo. Usualmente ogni commissura è sorretta dal corrispondente muscolo papillare. La caratteristica principale della valvola tricuspide è data dall’attacco diretto della cuspide settale al setto. Questa tipologia di inserzione delle corde alla superficie settale non si riscontra mai nella morfologia del ventricolo sinistro ad eccezione dei casi in cui la valvola tricuspide si inserisca a livello della porzione settale del ventricolo sinistro. La complessa organizzazione delle corde tendinee evita che le valvole atrio-ventricolari prolassino negli atri durante la fase sistolica di chiusura.

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© 2006 Springer-Verlag Italia

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Pratali, L. (2006). La valvola tricuspide. In: Ecocardiografia clinica. Springer, Milano. https://doi.org/10.1007/88-470-0460-8_3

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  • DOI: https://doi.org/10.1007/88-470-0460-8_3

  • Publisher Name: Springer, Milano

  • Print ISBN: 978-88-470-0459-7

  • Online ISBN: 978-88-470-0460-3

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