Circulatory System Test Questions with Verified Answers

Circulatory System Test Questions with
Verified Answers
Where does deoxygenated blood first enter the heart? And through what? - ANS -
Deoxygenated blood first enters the heart through the superior and inferior vena cava, and
then flows into the right atrium.



Does oxygenated or deoxygenated blood flow through the right atrium? - ANS -
Deoxygenated blood.



Does oxygenated or deoxygenated blood flow through the superior and inferior vena cava? -
ANS -Deoxygenated blood.



Which vena cava is above and which one is below? - ANS -The superior vena cava is
above the inferior vena cava. (Superior means above, and inferior means below)



Where does the deoxygenated blood go after it has reached the right atrium through the
superior and inferior vena cava? - ANS -The deoxygenated blood then flows to the
right ventricle, and then through the pulmonary artery to the lungs, where it is enriched with
oxygen we breathe in, and loses (deposits) carbon dioxide, so we can breathe it out.



Are the Superior Vena Cava and Inferior Vena Cavas veins or artery's? - ANS -Veins,
because deoxygenated blood flows through them.



Does oxygenated or deoxygenated blood flow through the right ventricle? - ANS -
Deoxygenated blood.



Does oxygenated or deoxygenated blood flow through the pulmonary artery? - ANS -
1




Deoxygenated blood.
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