contestada

The __________carries oxygen-poor venous blood from above the diaphragm from areas of the upper body and extremities into the right atrium. The carries oxygen-poor venous blood of the coronary circulation into the right atrium. The carries oxygen-poor venous blood from below the diaphragm from the areas of the lower body and extremities into the right atrium.

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Answer:

Superior vena cava

Explanation:

Of the two vena cava, the superior vena cava is the large vein without valves that is responsible for conveying de-oxygenated blood from the upper extremities and body (neck, chest, arm and head) above the diaphragm to the right artrium.

Although the superior vena cava is a large vein, it also short; it is about 2 cm wide and 7 cm long.

When there is an obstruction of the superior vena cava, it can result to the enlargement of the veins and could lead to chest pain and breathlessness.

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