Left marginal vein
(Redirected from Vena marginalis sinistra)
Left Marginal Vein
The Left Marginal Vein (also known as the Oblique Vein of the Left Atrium) is a blood vessel that plays a crucial role in the circulatory system of the human body. It is a significant component of the coronary circulatory system, which supplies blood to the heart muscle.
Etymology[edit | edit source]
The term "Left Marginal Vein" is derived from its anatomical position. It is located on the left margin of the heart, hence the name. The term "Oblique Vein of the Left Atrium" is also used to describe this vein due to its oblique course across the left atrium of the heart.
Anatomy[edit | edit source]
The Left Marginal Vein runs along the left margin of the heart and drains into the coronary sinus. It is typically found in the anterior interventricular sulcus, a groove that separates the left and right ventricles of the heart. The vein is responsible for draining the blood from the anterior wall of the left ventricle and the lateral wall of the left ventricle.
Function[edit | edit source]
The primary function of the Left Marginal Vein is to carry deoxygenated blood from the heart muscle back to the heart. This process is crucial for the removal of waste products from the heart muscle and for the supply of oxygenated blood.
Clinical Significance[edit | edit source]
The Left Marginal Vein is of clinical significance as it can be affected by various heart conditions. For instance, blockages in this vein can lead to myocardial infarction or heart attack. Moreover, its size and location make it a potential site for the placement of a pacemaker lead.
Related Terms[edit | edit source]
- Coronary circulation
- Coronary sinus
- Anterior interventricular sulcus
- Myocardial infarction
- Pacemaker
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