It Is the _____________ That Permits the Compression Necessary to Pump

Multiple Choice

It is the _____________ that permits the compression necessary to pump large volumes of blood out of the ventricles.

A) negative pressure inside the ventricles
B) absence of oxygenated blood in the atria
C) arrangement of cardiac muscle in the heart wall
D) presence of skeletal muscle tissue in the heart skeleton
E) presence of papillary muscles in the ventricles