What coronary artery supplies the posterior wall?

The marginal arteries supply blood to the superficial portions of the right ventricle. On the posterior surface of the heart, the right coronary artery gives rise to the posterior interventricular artery, also known as the posterior descending artery.

Which coronary artery supplies the posterior wall of the heart?

The right coronary artery supplies blood to the right ventricle and then supplies the underside (inferior wall) and backside (posterior wall) of the left ventricle.

Which coronary artery supplies what?

The right coronary artery supplies blood mainly to the right side of the heart. The right side of the heart is smaller because it pumps blood only to the lungs. The left coronary artery, which branches into the left anterior descending artery and the circumflex artery, supplies blood to the left side of the heart.

What artery supplies the posterior side of the ventricles?

Combined, these two supply blood to the left atrium and left ventricle. The circumflex artery is responsible for blood supply to the left atrium and the posterior-lateral aspect of the left ventricle while the LAD supplies blood to the anterior portion of the left ventricle.

What coronary artery supplies the SA node?

Right coronary artery

Right coronary artery (RCA). The right coronary artery supplies blood to the right ventricle, the right atrium, and the SA (sinoatrial) and AV (atrioventricular) nodes, which regulate the heart rhythm.

What coronary artery supplies the Inferolateral wall?

LAD indicates left anterior descending artery; LCX, left circumflex coronary artery; and RCA, right coronary artery. Large group of right posterolateral branches supplies the inferolateral wall in place of an obtuse marginal or distal left circumflexRight posterior descending artery reaches the apex.

What are the 4 coronary arteries?


  • Left coronary artery (LCA) Left anterior descending artery. Left circumflex artery. Posterior descending artery. Ramus or intermediate artery.
  • Right coronary artery (RCA) Right marginal artery. Posterior descending artery.

Where is the posterior descending artery located?

In the coronary circulation, the posterior interventricular artery (PIV, PIA, or PIVA), most often called the posterior descending artery (PDA), is an artery running in the posterior interventricular sulcus to the apex of the heart where it meets with the anterior interventricular artery or also known as Left Anterior …

What is the LCx coronary artery?

The Left Coronary Artery has two major branches; they are called the Left Anterior Descending (LAD) and the Left Circumflex (LCx) coronary arteries. The LAD supplies blood and oxygen to the anterior portion of the left ventricle. The LCx supplies blood and oxygen to the lateral portion of the left ventricle.

Is the SA node posterior?

In more than 50% of human hearts, the artery actually courses close to the superior posterior aspect of the interatrial septum. The origin of the sinoatrial node artery is not related to coronary artery dominance, which means the side (right or left) that provides the circulation to the back of the heart.

Does the circumflex artery supply the SA node?

From the left coronary system, the left anteromedial artery is the one responsible with the sinoatrial node supply; the source is the circumflex artery and its origin is the medial third of the left anterior quadrant.

What is the RCA coronary artery?

In the blood supply of the heart, the right coronary artery (RCA) is an artery originating above the right cusp of the aortic valve, at the right aortic sinus in the heart. It travels down the right coronary sulcus, towards the crux of the heart. It supplies the right side of the heart, and the interventricular septum.

Which coronary artery supplies the apex of the heart?

The left anterior descending artery (LAD) is the largest coronary artery runs anterior to the interventricular septum in the anterior interventricular groove, extending from the base of the heart to the apex.

Where is the ostial RCA?

The ostia of the left and right coronary arteries are located just above the aortic valve, as are the left and right sinuses of Valsalva.

Where is the RCA artery?

The right coronary artery (RCA) is one of two main coronary vessels that supply the myocardium (the other being the left coronary artery). It originates from the right aortic sinus of the ascending aorta and runs in the right part of atrioventricular groove (coronary sulcus) wrapping around the right side of the heart.

Which coronary artery is most important?

The heart’s three coronary arteries are not all equal. The most important artery is called the left anterior descending artery (LAD). It feeds blood to the whole front wall of the heart, which represents much more muscle than the area fed by either of the other two coronary arteries.

Which artery is the Widowmaker?

A widowmaker is an informal term for a heart attack that involves 100 percent blockage in the left anterior descending (LAD) artery, says Stanley Chetcuti, M.D., an interventional cardiologist at the University of Michigan Frankel Cardiovascular Center.

How important is RCA artery?

The primary task of the right coronary artery is to ensure proper circulation to the myocardium—the muscles of the heart—and, as such, influences the overall functioning of the body. The right coronary artery supplies blood to the right ventricle and atrium of the heart as well as sinoatrial and atrioventricular nodes.

How serious is RCA blockage?

A buildup of plaque can narrow these arteries, decreasing blood flow to your heart. Eventually, the reduced blood flow may cause chest pain (angina), shortness of breath, or other coronary artery disease signs and symptoms. A complete blockage can cause a heart attack.

What symptoms can you typically expect to see in a right coronary artery RCA blockage?

Symptoms of coronary artery disease include:

  • Heaviness, tightness, pressure, or pain in the chest behind the breastbone.
  • Pain spreading to the arms, shoulders, jaw, neck, or back.
  • Shortness of breath.
  • Weakness and fatigue.

What happens when RCA is blocked?

If an artery is substantially blocked, development of collateral circulation (i.e., other smaller vessels) may occur. When this happens, the collateral vessels help to maintain circulation to the area served by the artery in question.

What 3 foods cardiologists say to avoid?

Here are eight of the items on their lists:

  • Bacon, sausage and other processed meats. Hayes, who has a family history of coronary disease, is a vegetarian. …
  • Potato chips and other processed, packaged snacks. …
  • Dessert. …
  • Too much protein. …
  • Fast food.
  • Energy drinks.
  • Added salt. …
  • Coconut oil.

What is significant coronary artery stenosis?

Significant CAD was defined by invasive coronary angiography as >50% stenosis of the left main stem, >70% stenosis in a major coronary vessel, or 30% to 70% stenosis with fractional flow reserve ≤0.8. Significant CAD was present in 29% of patients.

What is left main coronary artery stenosis?

Left main coronary artery (LMCA) stenosis is a relatively infrequent but important cause of symptomatic coronary artery disease. Multiple studies have found LMCA stenosis to be an independent indicator of increased morbidity and mortality rates among patients with coronary artery disease.

Can you stent the left main coronary artery?

Left main coronary artery stenting is typically suitable for patients who are at high risk for surgical complications or have comorbidities.

How much blockage is normal?

A moderate amount of heart blockage is typically that in the 40-70% range, as seen in the diagram above where there is a 50% blockage at the beginning of the right coronary artery. Usually, heart blockage in the moderate range does not cause significant limitation to blood flow and so does not cause symptoms.