What are the 4 coronary arteries?
Table of Contents
What are the 4 coronary arteries?
Structure
- 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.
What are the 3 main coronary arteries?
What are the different coronary arteries?
- Circumflex artery (Cx)- the circumflex artery branches off the left coronary artery and encircles the heart muscle.
- Left anterior descending artery (LAD)- the left anterior descending artery branches off the left coronary artery and supplies blood to the front of the heart.
Which leads correspond to which coronary arteries?
ECG changes (relating coronary artery involved, site of infarction and lead showing changes)
| wall affected | leads | artery involved |
|---|---|---|
| Inferior | II, III, aVF | RCA |
| Lateral | I, aVL, V5-6 | circumflex |
| Posterior | V7-9 | RCA |
| Right ventricular | RV4-6 | RCA |
Which area of the heart is supplied by the right coronary artery quizlet?
The right coronary artery supplies the right atrium and right ventricle, the sinu-atrial and atrioventricular nodes, the interatrial septum, a portion of the left atrium, the posteroinferior one-third of the interventricular septum, and a portion of the posterior part of the left ventricle.
What does the RCA supply?
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.
Which coronary artery is affected in posterior MI?
Posterior myocardial infarction occurs when the posterior coronary circulation becomes disrupted. The two main branches of the coronary circulation are the right coronary artery and the left main coronary artery.
Which artery is involved in MI?
A myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to the coronary artery of the heart, causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck or jaw.
What part of the heart is supplied by the left coronary artery?
The left main coronary artery supplies blood to the left side of the heart muscle (the left ventricle and left atrium).
What do the coronary arteries supply the heart with quizlet?
Supplies blood to right atrium, portions of both ventricles and cells of AV nodes and SA node.
What is LAD LCX RCA?
RCA: Right coronary artery; LMCA: Left main coronary artery; LAD: Left anterior descending; LCX: Left circumflex artery.
What does circumflex artery supply?
The circumflex artery branches off the left coronary artery and encircles the heart muscle. This artery supplies blood to the outer side and back of the heart.