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Diagonal Branch of Anterior Interventricular Artery
Cardiovascular System

Diagonal Branch of Anterior Interventricular Artery

Ramus diagonalis arteriae interventricularis anterioris

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Origin

The diagonal branch is a common variant which is present in 33–50% of individuals (Standring, 2016). It is the largest branch that arises from the anterior interventricular branch of the left coronary artery.

Course

The diagonal branch descends along the anterior (or sternocostal) surface of the left ventricle, parallel to the anterior interventricular artery.

Supplied Structures

The diagonal branch contributes to the supply of the anterior surface of the left ventricle.

List of Clinical Correlates

- Coronary artery disease

- Coronary atherosclerosis

- Coronary bypass graft

- Coronary angioplasty

- Coronary occlusion

- Coronary revascularization

- Coronary artery fistula

References

Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

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