Superior vena cava

The superior vena cava is formed behind the right first costal cartilage by the union of the right and left brachiocephalic veins (Figure IU-2-13).

; It returns blood from the head, neck, and upper extremities to the right atrium of the heart.

artery vein

Figure III-2-13. Structures of the Mediastinum

Left vagus nerve (X)

Left internal jugular vein

Left subclavian and vein

Right vagus nerve (X)

Brachiocephalic artery

Right phrenic nerve

Right subclavian artery and vein

Left brachiocephalic Left phrenic nerve

Superior vena cava

Left brachiocephalic Left phrenic nerve

Left vagus nerve (X)

Left internal jugular vein

Left subclavian and vein

Right vagus nerve (X)

Brachiocephalic artery

Right phrenic nerve

Superior vena cava

Right subclavian artery and vein

Right brachiocephalic vein-

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