The two upper chambers of the heart are called ______ .
Options:
A . ventricles
B . atria
C . arteries
D . veins
Answer: Option B : B ∙ Human heart consists of 4 chambers. The two upper chambers of the heart are called atria and the two lower chambers are called ventricles. ∙ Arteriesare the blood vessels that carry oxygenated blood from the heart to all parts of the body. ∙ Veins are the blood vessels that carry deoxygenated blood back to the heart from all parts of the body.
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