adriannacue3454 adriannacue3454

03-04-2020
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The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called
, and the lower chambers of the heart are called
.

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sam0829 sam0829

03-04-2020

The upper chambers of the heart are called Syria and the lower are called ventricles.

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IAmAChair IAmAChair

14-05-2020

Answer:

1. Atria 2. Ventricles

Explanation:

I took the assignment and this is the correct answer.

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