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. The right coronary artery divides into smaller branches, including the right posterior descending artery and the acute marginal artery.
What does right dominant coronary circulation mean?
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 are the functions of the right and left coronary arteries?
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 is the difference between right dominant and left dominant coronary circulation?
In a right dominant heart, the right ventricle is supplied by the right marginal branch. In a left dominant heart, the right ventricle is supplied by the circumflex artery. The left ventricle, which contains the majority of the heart’s myocardium, is supplied by both right and left circulation.
What is the role of the right ventricle?
The right ventricle passes the blood on to the pulmonary artery, which sends it to the lungs to pick up oxygen. The left atrium receives the now oxygen-rich blood from the lungs and pumps it into the left ventricle.
What happens when the right coronary artery is blocked?
A completely blocked coronary artery will cause a heart attack. The classic signs and symptoms of a heart attack include crushing pressure in your chest and pain in your shoulder or arm, sometimes with shortness of breath and sweating.
What is the function of coronary circulation quizlet?
The coronary circulation provides oxygenated blood to the heart through coronary arteries. Coronary veins return the deoxygenated from the heart to the coronary sinus on the posterior surface of the heart.
What drains into the right ventricle?
The middle cardiac vein drains into the coronary sinus or directly into the right atrium [4]. The small cardiac vein, also known as the right cardiac vein [12], commonly drains the inferior and lateral wall of the right ventricle.
Is right ventricular ejection fraction important?
There is increasing evidence that right ventricular ejection fraction (RVEF) is also a powerful predictor of mortality in this subgroup of patients—perhaps the most powerful predictor.
Can you stent the circumflex artery?
Advancement of stent delivery systems in such cases requires good support with the possibility of selective cannulation and deep engagement of the guiding catheter. We report a case of stent placement in an anomalous circumflex artery arising from the right coronary artery.
