Left Coronary Artery

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  • arises from left posterior aortic sinus
    • behind pulmonary trunk
  • divides into two main arteries
    • circumflex
    • left anterior descending (anterior interventricular)

Supplies

  • 40% of hearts have SA nodal artery arising from left coronary artery
  • majority of left ventricle
  • majority of left atrium
  • part of right ventricle
    • via conus branch

 

 

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