Which feature permits the compression necessary to pump large volumes of blood out of the ventricles?

A. Absence of oxygenated blood in the atria
B. Presence of papillary muscles in the ventricles
C. Arrangement of cardiac muscle in the heart wall
D. Negative pressure inside the ventricles
E. Presence of skeletal muscle tissue in the heart skeleton


Answer: C

Anatomy & Physiology

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