Which coronary artery supplies the SA node usually via its nodal branch?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Study for the Registered Cardiac Electrophysiology Specialist Exam. Engage with interactive flashcards and multiple-choice questions, each with detailed hints and explanations. Prepare to succeed in your examination!

Multiple Choice

Which coronary artery supplies the SA node usually via its nodal branch?

Explanation:
The right coronary artery. The SA node is most commonly supplied by a nodal artery that branches from the right coronary artery and travels to the sinoatrial node, especially in hearts with right-dominant circulation. This means occlusions or ischemia in the RCA can directly affect sinus node blood flow and function. In a smaller subset of people with left-dominant circulation, the left circumflex artery may provide the nodal supply, but the usual source is the right coronary artery.

The right coronary artery. The SA node is most commonly supplied by a nodal artery that branches from the right coronary artery and travels to the sinoatrial node, especially in hearts with right-dominant circulation. This means occlusions or ischemia in the RCA can directly affect sinus node blood flow and function. In a smaller subset of people with left-dominant circulation, the left circumflex artery may provide the nodal supply, but the usual source is the right coronary artery.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy