yläonttolaskimona

The superior vena cava, known in Finnish as the yläonttolaskimo, is a large vein that carries deoxygenated blood from the upper body to the right atrium of the heart. It is formed by the union of the left and right brachiocephalic veins, which collect blood from the head, neck, and upper limbs. The superior vena cava runs vertically down the right side of the superior mediastinum, anterior to the trachea and medial to the ascending aorta. It empties into the upper part of the right atrium. The superior vena cava is a crucial component of the circulatory system, ensuring that deoxygenated blood from the upper body is efficiently returned to the heart for oxygenation in the lungs. Its position and function make it vital for maintaining blood circulation and oxygen supply to the brain and other upper body tissues. Any obstruction or abnormality in the superior vena cava can lead to serious health issues, such as swelling in the face, arms, and upper chest, as well as shortness of breath and pain.