Heart Structure and Function. Lab III. Closed Circulatory System. Pulmonary Circulation: Carries O 2 -depleted blood away from the heart, to the lungs, and returns to the heart with O 2 rich blood.
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Pulmonary Circulation: Carries O2-depleted blood away from the heart, to the lungs, and returns to the heart with O2 rich blood
Systemic Circulation: carries blood with O2 away from the heart to the rest of the body, and returns deoxygenated blood back to the heart
atria from ventricles
to the lungs
Electrical Activity of the Heart
atria can empty their blood completely before
the ventricles open
Electrical current in the heart animation