A function of the pericardium is to:
a. provide a barrier against extracardial in-fections.
b. improve blood flow through the heart.
c. play a role in cardiac conduction.
d. assist in cardiac contraction.
ANS: A
A function of the pericardium is to provide a barrier against extracardial infections. The pericar-dium does not improve blood flow through the heart as it is on the outside. The inner portions of the heart control cardiac conduction. The muscular layers assist with cardiac contraction.
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