Coronary Arteries Pictures

Below are pictures of the heart and the arteries of the heart - the coronary arteries

picture of the coronary arteries

 

human heart with coronary arteries picture

 

overview of the coronary arteries in the anterior projection

 

Above picture of an overview of the coronary arteries in the anterior projection.
 
  • Left Main or left coronary artery (LCA)
    • Left anterior descending (LAD)
      • Diagonal branches (D1, D2)
      • Septal branches
    • Circumflex (Cx)
      • Marginal branches (M1,M2)
  • Right coronary artery
    • Acute marginal branch (AM)
    • AV node branch
    • Posterior descending artery (PDA)

 

overview of the coronary arteries in the right anterior oblique projection.

Above: an overview of the coronary arteries in the right anterior oblique projection.

 

  • Left Main or left coronary artery (LCA)
    • Left anterior descending (LAD)
      • Diagonal branches (D1, D2)
      • Septal branches
    • Circumflex (Cx)
      • Marginal branches (M1,M2)
  • Right coronary artery
    • Acute marginal branch (AM)
    • AV node branch
    • Posterior descending artery (PDA)
The coronary circulation is the circulation of blood in the blood vessels of the heart muscle (myocardium). The vessels that deliver oxygen-rich blood to the myocardium are known as coronary arteries. The vessels that remove the deoxygenated blood from the heart muscle are known as cardiac veins. These include the great cardiac vein, the middle cardiac vein, the small cardiac vein and the anterior cardiac veins.
As the left and right coronary arteries run on the surface of the heart, they can be called epicardial coronary arteries. These arteries, when healthy, are capable of autoregulation to maintain coronary blood flow at levels appropriate to the needs of the heart muscle. These relatively narrow vessels are commonly affected by atherosclerosis and can become blocked, causing angina or a heart attack. The coronary arteries that run deep within the myocardium are referred to as subendocardial.
The coronary arteries are classified as "end circulation", since they represent the only source of blood supply to the myocardium: there is very little redundant blood supply, which is why blockage of these vessels can be so critical.
 
picture of the coronary arteries
 
Coronary arterial supply 
 
The right and left coronary arteries arise from the ascending aorta in its anterior and left posterior sinuses (see above). The levels of the coronary ostia are variable. The two arteries, as indicated by their name, form an oblique inverted crown, in which an anastomotic circle in the atrioventricular groove is connected by marginal and interventricular (descending) loops intersecting at the cardiac apex. This is, of course, only an approximation. The degree of anastomosis varies and is usually insignificant. The main arteries and major branches are usually subepicardial, but those in the atrioventricular and interventricular grooves are often deeply sited, and occasionally hidden by overlapping myocardium or embedded in it.
 
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