Q:

True statement(s) concerning cardiac vascular anatomy include the following:

waelhammad
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2022-12-10
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True statement(s) concerning cardiac vascular anatomy include the following:

  1. In 80%–85% of cases the posterior descending coronary artery (PDA) arises from the circumflex coronary artery
  2. The PDA gives off the AV nodal artery
  3. The great cardiac vein ascends along the right coronary artery to empty into the coronary sinus
  4. Thebesian veins drain from only left and right ventricles
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waelhammad
2022-12-10
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b. The PDA gives off the AV nodal artery

In 80%–85% of cases the circumflex coronary artery ends with branches to the left ventricle while the PDA originates from the right coronary in 80%–85% of cases. The PDA gives off the AV nodal artery and its occlusion can result in heart block. The great cardiac vein ascends along the left anterior descending coronary artery and the Thebesian veins drain all 4 chambers. 

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