Through the vena cava. Blood enters the heart at the right atrium when from the systemic circulation. It Gets here through the superior and inferior vena cava and the coronary sinus. From the pulmonary circulation it enters the left atrium from the pulmonary vein.
Blood enters the heart through two large veins: the superior vena cava and the inferior vena cava.
Oxygenated blood from the lungs first enters the heart at the left atrium.
Deoxygenated blood from the body first enters the heart at the right atrium.
Goes through the mouth, and into the butt.
Blood returns to the heart through the veins. It enters the left atrium and is pumped into the left ventricle (see picture above)
it flows bythe kidney.
blood that has not been oxegenated.
When blood leaves the lungs through the pulmonary veins, it returns to the heart and enters the left ventricle.
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.
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Through the inferior and superior vena cavaThe left atria of the heart is where oxygenated blood enters, it is then pumped to the left ventricle and then to the rest of the body thru the systematic circuit. The heart is separated by the septum, which separates oxygenated and deoxygenated blood.
The right atrium is where deoxygenated blood enters the heart.
When blood leaves the lungs through the pulmonary veins, it returns to the heart and enters the left ventricle.
Oxygenated blood enters the left side of the heart (atria) via the pulmonary veins
Oxygen-poor blood enters the heart through the right atrium
De-oxygenated blood is dark red. Oxygenated blood is bright red. Both enter the heart- the former enters the right heart; the latter enters the left heart.
Right atrium
When blood that is rich in oxygen re enters the heart, the blood enters through the pulmonary valve. The pulmonary valve brings the oxygen rich blood to the pulmonary trunk of the pulmonary artery.
Blood returning from the body systemic circulation first enters which chamber of the heart?
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 returning from systemic circulation enters the heart at the right atrium. Blood from the pulmonary circulation enters the left atrium.
Blood enters the heart through the Inferior Vena Cava from all the regions of the body below the heart
Deoxygenated blood enters the heart via the superior and inferior vena cava.
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