Sagot :
Answer:
False
Explanation:
The upper chambers are called the left and right atria, and the lower chambers are called the left and right ventricles.
Answer:
False
Explanation:
The upper chambers are the called atria and act as the receiving chambers. The lower chambers are called ventricles; these are the pumping chambers. There are four valves within the heart, which help control the direction of blood flow.
cause the lower Chambers are called (Ventricles)
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