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Subclavian Vein


ANATOMY

Subclavian Vein is a continuity of the Axillary Vein. It runs along the medial side of Anterior Scalene Muscle (muscles in the lateral neck) to the outer border of first rib. From this point Subclavian Vein joins the Internal Jugular Vein (paired vein collecting blood from brain) to form Brachiocephalic Vein also named as Innominate Vein. The angle of their joining is called as Venous Angle.

It follows the Subclavian Artery and is separated from it by the insertion of Anterior Scalene Muscle. Subclavian vein lies anterior with the Anterior Scalene whereas Subclavian Artery lies posterior to Anterior Scalene.

 

FUNCTION

The functions of Subclavian Vein include emptying the blood from upper region of body and bringing it back to the heart. Near the junction of Left Internal Jugular Vein the Thoracic Duct drains into the Subclavian Vein. It also carries Lymph from Lymphatic System and Chyle (milky bodily fluids made of lymph, fats and fatty acids) formed from fat and lipids. Right Lymphatic Duct drains the lymph into Right Internal Jugular Vein and Right Subclavian Vein.

 

CLINICAL SIGNIFICANCE

Subclavian Vein is used to insert a Catheter known as Central Venous Catheter or Central Line which is used to transport the medications in the bloodstream in cases of emergency.

 

Many conditions affect the Subclavian Vein for example Paget – von Schroetter syndrome, a condition which causes the Thrombosis (clotting) of veins. The cause for syndrome is mainly Exercise related strain. Anti clotting medications are used for the Thrombosis because if the clotted blood reaches the heart it can cause dire complications.



ANATOMY

Subclavian Vein is a continuity of the Axillary Vein. It runs along the medial side of Anterior Scalene Muscle (muscles in the lateral neck) to the outer border of first rib. From this point Subclavian Vein joins the Internal Jugular Vein (paired vein collecting blood from brain) to form Brachiocephalic Vein also named as Innominate Vein. The angle of their joining is called as Venous Angle.

It follows the Subclavian Artery and is separated from it by the insertion of Anterior Scalene Muscle. Subclavian vein lies anterior with the Anterior Scalene whereas Subclavian Artery lies posterior to Anterior Scalene.

 

FUNCTION

The functions of Subclavian Vein include emptying the blood from upper region of body and bringing it back to the heart. Near the junction of Left Internal Jugular Vein the Thoracic Duct drains into the Subclavian Vein. It also carries Lymph from Lymphatic System and Chyle (milky bodily fluids made of lymph, fats and fatty acids) formed from fat and lipids. Right Lymphatic Duct drains the lymph into Right Internal Jugular Vein and Right Subclavian Vein.

 

CLINICAL SIGNIFICANCE

Subclavian Vein is used to insert a Catheter known as Central Venous Catheter or Central Line which is used to transport the medications in the bloodstream in cases of emergency.

 

Many conditions affect the Subclavian Vein for example Paget – von Schroetter syndrome, a condition which causes the Thrombosis (clotting) of veins. The cause for syndrome is mainly Exercise related strain. Anti clotting medications are used for the Thrombosis because if the clotted blood reaches the heart it can cause dire complications.

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