What are the three major veins that return blood to theright atrium?
What are the three major veins that return blood to the
right atrium?
The three major veins that return blood to the right atrium are superior vena cava , inferior vena cava and coronary sinus .
Deoxygenated blood enters the right atrium through three major veins : the superior and inferior vena cava and the coronary sinus . The superior vena cava returns all of the blood to the heart from tissues superior to all heart in the head , neck , arms and upper thorax . The inferior vena cava returns blood to the heart from tissues inferior to the heart , including the legs , abdomen and lower thorax . Blood from the exterior of the heart itself is collected in the coronary sinus to be returned to the interior of the heart .
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