What is left dominant coronary circulation?

show answer. A: “Dominance” is defined in terms of which coronary artery supplies the posterior descending artery (PDA), which travels along the inferior interventricular groove from the crux of the heart to the apex, as well as the posterior left ventricular braches.

What is the difference between right dominant and left dominant coronary circulation?

Introduction. In a right-dominant circulation, the right coronary artery (RCA) supplies the posterior portion of the interventricular septum and gives off the posterior descending artery. This contrasts with a left-dominant circulation, in which the left circumflex (LCX) artery supplies this territory.

What is coronary circulation quizlet?

coronary circulation. functional blood supply to the heart muscle itself. the right and left coronary arteries.

What does the left main coronary artery supply?

The left main coronary artery supplies blood to the left side of the heart muscle (the left ventricle and left atrium). The left main coronary divides into branches: The left anterior descending artery branches off the left coronary artery and supplies blood to the front of the left side of the heart.

What is left dominance in heart?

Heart dominance is described by which coronary artery branch gives off the posterior descending artery and supplies the inferior wall, and is characterized as left, right, or codominant. It is at the apex where it meets the left anterior descending artery that is traveling along the anterior surface of the heart.

Which artery determines the dominance of the heart?

posterior descending artery
Heart dominance is described by which coronary artery branch gives off the posterior descending artery and supplies the inferior wall, and is characterized as left, right, or codominant.

How do you determine dominant heart?

Heart “dominance” is determined by which of the initial coronary arteries supplies the PDA which, in turn, supplies the AV node. The heart is right dominant (85%) if the PDA is supplied by the RCA. The heart is left dominant (7.5%) if the PDA is supplied by the circumflex branch of the LCA.

What is the coronary circulation pathway?

Coronary circulation, part of the systemic circulatory system that supplies blood to and provides drainage from the tissues of the heart. Deoxygenated blood is returned to the chambers of the heart via coronary veins; most of these converge to form the coronary venous sinus, which drains into the right atrium.

Which vessel is part of the coronary circulation quizlet?

Main coronary arteries lie on the SURFACE of the heart. Smaller arteries then PENETRATE the surface INTO the Cardiac Muscle Mass. LEFT Coronary Artery supplies ANTERIOR & LEFT parts of LV whereas RIGHT Coronary Artery supplies most of the RV.

Can the left main artery be stented?

However some patients with advanced coronary artery disease are candidates for a procedure called left main stenting. This procedure involves placing a metal stent coated with a time-release medication into the artery to open the blockage.

What happens if the left coronary artery is blocked?

When one or more of the coronary arteries suddenly becomes completely blocked, a heart attack (injury to the heart muscle) may occur. If the blockage occurs more slowly, the heart muscle may develop small collateral blood vessels (or detours) for other coronary arteries to reroute the blood flow, and angina occurs.