These categories are called epicardial (above the epicardium, or the outermost tissue of the heart) and microvascular (close to the endocardium, or the innermost tissue of the heart). [2] Reduced function of the coronary arteries can lead to decreased flow of oxygen and nutrients to the heart.

Coronary arteries supply blood to the heart muscle. There are two main coronary arteries: the right and the left.

2023年7月13日 · The major divisions of the coronary arteries usually travel just below the epicardial layer of the heart. However, their branches may become deeply embedded in the myocardium as they pass through the cardiac grooves.

The left and right coronary arteries and their branches lie on the surface of the heart and, therefore, are sometimes referred to as the epicardial coronary vessels. These vessels distribute blood flow to different regions of the heart muscle.

The coronary arteries originate as the right and left main coronary arteries which exit the ascending aorta just above the aortic valve (coronary ostia). These two branches subdivide and course over the surface of the heart (epicardium) as they traverse away from the aorta.

The epicardial coronary artery system consists of the left and right coronary arteries, which normally arise from 0s- tia located in the left and right sinuses of Valsalva, respec-

2024年6月18日 · We will discuss the importance of the epicardium in coronary blood vessel morphogenesis, from the contribution of the epicardially derived mesenchyme to these blood vessels to its role as an instructive signaling center, attempting to relate these concepts to the origin of coronary disease.

Understand the vital roles of coronary artery collateral circulation and coronary artery remodeling in the pathogenesis of coronary artery disease. Fully understand the underlying pathophysiology and treatment of the acute coronary syndromes.

2015年1月1日 · The pathophysiologic mechanisms responsible for myocardial ischemia (either in conditions of increased oxygen requirement or at rest) include atherosclerotic coronary flow-limiting stenosis, epicardial coronary artery spasm, coronary microvascular dysfunction and coronary thrombosis.

We will discuss the importance of the epicardium in coronary blood vessel morphogenesis, from the contribution of the epicardially derived mesenchyme to these blood vessels to its role as an instructive signaling center, attempting to relate these …