Coronary artery territories
The main epicardial coronary arteries supply distinct regions of the myocardium, which can be mapped and assessed during an ultrasound examination. For standardization, the left ventricle (LV) is divided along its long axis into four quadrants: anterior, inferior, septal, and lateral.
At the basal and midventricular levels, the septal and lateral walls are further subdivided into anterior and inferior segments. Each wall is then divided in short-axis views into basal, mid, and apical thirds. Beyond the LV cavity, the distal apex forms a cap segment. Altogether, this results in a total of 17 myocardial segments.
Most of the heart’s blood supply comes from the left main coronary artery, which divides into the left anterior descending (LAD) and left circumflex (LCx) arteries. The LAD supplies most of the anterior ventricular wall, while its septal branches supply the anterior two-thirds of the interventricular septum. Its diagonal branches supply the anterolateral wall. In some cases, a large LAD may wrap around the apex and supply the distal portion of the inferior wall.
The LCx travels in the atrioventricular groove, and its obtuse marginal branches supply the inferolateral wall. The right coronary artery (RCA) supplies the inferior third of the septum and the inferior wall, and it also provides blood to the right ventricle.
Adapted from Bulwer BE, Rivero JM, eds. Echocardiography Pocket Guide: The Transthoracic Examination
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I got back my account after so long. Life is good nowadays because I did pass my job interview. I wish to be this happy always.
But I got separated from my best friend who is my sister. I wish to live with her again.
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Dear Muslims,
“Du’a can change Qadr”
So,
- Never give up in making Du’a
- Believe in Du’a
- Be consistent about it
- Your Lord is Al- Wahhab (the giver) & Al-Mujeeb (the answerer). Be limitless in your Du’as
(Ibn Majah)