Animal Biology 0.0 / 5 ? BiologyRespiratory OrgansASAll boards Created by: JasperJasperCreated on: 22-11-17 10:43 The two uppermost chambers of the heart are called..... Atria 1 of 5 The two lowermost chambers of the heart are called..... Ventricles 2 of 5 The ___ returns blood from body regions above the diaphragm Superior vena cava 3 of 5 The ___ returns blood from body regions below the diaphragm Inferior vena cava 4 of 5 The widest part of the heart is called..... The base 5 of 5
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