Anterior intercostal veins

Anterior Intercostal Veins are veins that are part of the human circulatory system. They are located in the thoracic cavity, specifically in the intercostal spaces, which are the spaces between the ribs.

Etymology

The term "anterior intercostal veins" is derived from the Latin words "anterior" meaning front, "inter" meaning between, and "costa" meaning rib. Thus, the term literally means "veins between the ribs at the front".

Anatomy

The anterior intercostal veins are responsible for draining the blood from the intercostal muscles, which are the muscles situated between the ribs. They are paired with the anterior intercostal arteries, which supply blood to the same area.

There are typically eleven anterior intercostal veins on each side of the body, each corresponding to an intercostal space. These veins drain into the internal thoracic vein and the musculophrenic vein.

Function

The primary function of the anterior intercostal veins is to return deoxygenated blood from the intercostal muscles back to the heart. This is part of the systemic venous return, which is the process of returning deoxygenated blood back to the heart to be re-oxygenated.

Clinical Significance

Due to their location, the anterior intercostal veins can be affected by various thoracic and cardiovascular conditions. For example, they can be involved in thoracic outlet syndrome, a condition that compresses the nerves and blood vessels in the upper chest.

See Also

• Vein
• Intercostal spaces
• Human circulatory system

References

Anterior intercostal veins Resources
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