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Papillary muscle (left ventricle, anatomy)

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The papillary muscles of the left ventricle are very variable in their morphology. Usually, there are two main muscles:

  • anterior:
    • larger of the two
    • originate from sternocostal surface of left ventricular myocardium
  • posterior: originates from inferior wall of ventricle

The chordae tendineae of any one papillary muscle diverge to insert into regions of both valve leaflets.

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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