Deoxygenated blood from around the body.
The right atrium is where deoxygenated blood enters the heart.
Right atrium
Oxygen-poor blood enters the heart through the right atrium
The blood re-enters the heart through the superior vena cava and into the right atrium.
blood first enters the heart through the right atrium.
the left side of the heart
Blood returning from systemic circulation enters the heart at the right atrium. Blood from the pulmonary circulation enters the left atrium.
The blood with high oxygen content enter the heart in left atrium through right and left pulmonary veins, combined together.
Blood that comes in to the right atrium comes from the pulmonary vein.
The blood enters throught the heart throught the right and left atria. As the heart contracts, blood flows into the ventricles and then out from the ventricles.
blood used by the body enters the right atrium
The left atrium