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What is the left coronary artery and where is it located?

What is the left coronary artery and where is it located?  What is the function?

The path of the left coronary artery (the vital left coronary duct) rises from the aorta through the left aortic anastomosis, into the sinus of Valsalva.

 

The level of the semilunar valve is changed so that the opening of the left coronary artery is above the opening of the right coronary artery and back.  The left coronary artery passes from the aorta and passes between the pulmonary trunk and the left atrium organ.

Under the reference section, the duct (in this way a very short vessel) divides into the first ventricle (the left anterior immersed passage) and the left marginal vein.  This bifurcation can be seen frequently when the ostial left coronary artery is viewed using a video endoscope.

It is observed that the left coronary artery pathway may be completely missing, i.e. the supply routes between the anterior and marginal ventricles appear free from the left aortic sinus. 

The left coronary vein begins from the left aortic sinus.  Passage departure in some cases is located below the edge of the valve booklets and may be two-pronged, usually pushing the marginal and first portions (left anterior slip) of the supply path of the left coronary artery.

 

The length of the primary section, between its opening and first branches, varies from a few millimeters to a few centimeters. 

The vein is located between the sphenoid trunk and the left atrial auricle and exits into the atrioventricular sulcus, where it goes to one side.

This section is inaccurately inserted into the subcardial fat and does not usually have branches, however, it may lead to the formation of a small atrial branch and rarely the SA node passage.

 

After reaching the atrioventricular sulcus, the left coronary artery divides into two main branches: the marginal supply routes and the most important interventricular vein.

Left coronary artery function.

Coronary passages supply the heart muscle (heart tissue) with blood;  That is, the coronary vessels deliver oxygenated blood (supplements) to every cell of the heart.

The left coronary artery and its branches supply most of the oxygenated blood to the ventricular myocardium, as well as the left chamber, left atrial extremity, respiratory passage, and aortic root.

The left coronary artery can supply blood to the left half of the myocardium, or at least the left ventricle and left chamber. The superior left coronary artery is isolated into several branches, which are as follows:

• The left drooping passage branches first of all from the left coronary artery and its ability to supply blood to the anterior part of the left half of the heart.

• The reflex duct branches from the left coronary artery and run around the myocardium.  This vein supplies blood to the outside and behind the heart muscle.

The importance of the left coronary artery in cardiovascular disease.

Importance of the left coronary artery The importance of the left coronary artery in cardiovascular disease.

Coronary duct infection is largely characterized by the progressive reduction of the lumen of the coronary passages due to the hardening of the left coronary artery.

Sclerosis of the left coronary artery is a condition that involves the thickening of the vascular breaks by cholesterol and lipid stores that develop along the luminal surface of the veins.

In severe infections, these plaques may calcify, expand in size and eventually cause dangerous stenosis;  The restricted vessel has a dilated vascular occlusion that contrasts with the acoustic vessels.

Consistent thinning in the cross-sectional area of ​​the supply route can eventually lead to complete obstruction of the channel.

Thus, the myocardial supply of oxygen and supplements decreases below the degree of benefit.  As the disease progresses, the myocardium downstream of the obstructed duct becomes ischemic.

Myocardial ischemia not only impairs the electrical and mechanical capacity of the heart but also leads to a serious chest torment known as "angina pectoris".

Finally, dead myocardial tissue may occur if coronary passage infection is not recognized and treated according to schedule, resulting in cardiovascular collapse or sudden cardiac death.

Symptoms of left coronary artery disease.

Symptoms of left coronary artery disease.

If the left coronary artery is blocked, the heart cannot be provided with enough oxygen-rich blood - especially when the heart is stressed, for example, during exercise.

From the outset, low blood flow does not cause any side effects. Anyway, as deposits continue to develop in coronary channels, Side effects associated with left coronary artery supply pathway disease include:

• Chest torment (angina). You may feel strained or heavy in your chest as if someone is sitting on your chest. This inflammation, called angina, occurs in the middle or left half of the chest. Angina generally occurs due to physical or deep pressure. Aggravation usually disappears within minutes In some individuals, especially ladies, pain may be mild or severe in the neck, arm, or back.

• The wind. If the heart is unable to draw blood to the point of meeting the body's needs, you may feel distressed or overly stressed to make any movement.

• cardiovascular failure. A complete blockage of the coronary passage leads to cardiovascular failure. Common signs and side effects of cardiovascular failure remember heavy tension on your chest and torture in your shoulder or arm, occasionally with sweating and wind.

Women are more unusual than men in showing signs and side effects of respiratory failure, for example, neck or jaw pain. They may feel different side effects such as wind, fatigue, or disease.

It should also be noted that sometimes respiratory failure occurs without obvious signs or side effects.

Causes of left coronary artery disease. 

Coronary disease is primarily reminiscent of damage or injury to the deeper layer of the coronary artery stream, sometimes the easiest in young people. This damage may occur through different variables, including:

• Smoking.

 

• High blood pressure. 

• High cholesterol.

 

• Diabetes or insulin opposition. 

When the internal mass of the supply route is damaged, fat stores (plaque) made of cholesterol and other cell repellents will generally gather at the site of injury.

This reaction is called atherosclerosis. In case of breakage or explosion of the outer layer of platelets, platelets gather a set of platelets to try to repair the channel. This pool can block the driveway, resulting in respiratory failure.