It is formed by the right and the left common iliac veins.
It is located in the groove between the posterior parts of left atrium and left ventricle.
It allows the blood flow to the artery and prevents the blood return to the ventricle.
It functions preventing the blood return to the atria.
It is the muscle bundle of the atrium.
It allows the blood flow from the left atrium to the left ventricle.
It allows the blood flow from the right atrium to the right ventricle.
It allows the fetal blood flow from the right to the left atria.
It increases the heart rate.
It is formed by the right and the left brachiocephalic veins.