The function of the pericardial fluid is to
A) reduce friction between the pericardial membranes.
B) lubricate the heart valves.
C) replace any blood that is lost.
D) provide oxygen and nutrients to the endocardium.
E) stimulate the heart.

Question

Quizplus · Accepted Answer

The pericardial fluid is secreted into the pericardial cavity by the serous layer of the pericardium. Its primary function is to reduce friction between the heart and the pericardial membranes as the heart beats, allowing for smooth, frictionless movement.

The Function of the Pericardial Fluid Is to